WO2014040293A1 - Air purification system for household animals - Google Patents

Air purification system for household animals Download PDF

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Publication number
WO2014040293A1
WO2014040293A1 PCT/CN2012/081478 CN2012081478W WO2014040293A1 WO 2014040293 A1 WO2014040293 A1 WO 2014040293A1 CN 2012081478 W CN2012081478 W CN 2012081478W WO 2014040293 A1 WO2014040293 A1 WO 2014040293A1
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WO
WIPO (PCT)
Prior art keywords
animal
filter
airflow
animal hair
purification system
Prior art date
Application number
PCT/CN2012/081478
Other languages
French (fr)
Inventor
Chi Keung Rudy Chan
Ka Wai Jim
Original Assignee
Rht Limited
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Publication date
Application filed by Rht Limited filed Critical Rht Limited
Priority to PCT/CN2012/081478 priority Critical patent/WO2014040293A1/en
Publication of WO2014040293A1 publication Critical patent/WO2014040293A1/en

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
    • A01K1/03—Housing for domestic or laboratory animals
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/02—Pigsties; Dog-kennels; Rabbit-hutches or the like
    • A01K1/03—Housing for domestic or laboratory animals
    • A01K1/031—Cages for laboratory animals; Cages for measuring metabolism of animals
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K13/00—Devices for grooming or caring of animals, e.g. curry-combs; Fetlock rings; Tail-holders; Devices for preventing crib-biting; Washing devices; Protection against weather conditions or insects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means

Definitions

  • the present invention relates to a design for household animal odor removal.
  • the present invention relates to an air purification system which specially deals with air-related problems caused by household animals such as domestic dogs, cats and hamsters.
  • Stepanian (US Pat. No. 4,308,825) proposed a device for removing pet odors and holding pet waste materials including a receptacle absorbant, screen material, porous material.
  • the invention allows litter for household animals to last longer and to allow the pet owner to care for the pet in a more economical fashion.
  • the invention can only control the animal odor at the location of the litter box. The animal odors at other locations have not been solved.
  • Jacquart (US Pat. No. US2012/0118239A1) proposed an odor reducing pet bed that includes a supply of powdered carbon fiber for absorbing odors and at the same time provides a soft and comfortable pad for domestic animals to rest on.
  • the carbon fiber will be saturated upon usage and require replacement.
  • the replacement frequency may vary under different environmental conditions.
  • the odor removal is based on diffusion into the odor reducing pet bed, where the effective area will be limited.
  • Walker (US Pat. No. 5,819,688) proposed a pet animal odor absorbing mat comprising of a fibrous material incorporated with a zeolite material in the presence of a non-toxic binder.
  • the fibrous base material can absorb a substantial amount of liquid discharge of an animal readily and easily.
  • the non-toxic odorless zeolite material can trap odors and gases from an animal body.
  • the odor removal component is embedded inside a pad or a mat, the component will face a problem of saturation and require replacement.
  • the efficiency and the effective area is limited.
  • Mitrano and co-worker (US Pat. No. 4,308,825) introduced an odor reducing pet collar for household animal.
  • the collar is encased with activated carbon and secured by a tie and attachment.
  • the activated carbon encased inside the collar provides a large surface area for the adsorption of the odor of the animal.
  • the odors originating from the pet can be immediately captured by the activated carbon in the collar.
  • the collar will be discarded and replaced by a new one when the function is exhausted.
  • This invention can help to deal with the animal odor problem, the collar equipped with activated charcoal can prevent the odor to diffuse in a large area.
  • activated charcoal will be saturated upon usage. The frequent dispose of the saturated collar will give rise to a cost and environmental concern. Moreover, not all the household animals are suitable for a collar.
  • Geer and co-worker introduced a unit for eliminating offensive odors.
  • the unit consists of a substantially sheer electrostatic filter sheet and a silent blower.
  • the blower is designed to operate at a decibel level that does not offend the household animal.
  • the invention also consist of an animal litter box, the litter box has an enclosure that allows animal to enter and exit, leaving the bathroom deposits inside.
  • the invention can only control the odor problem at the location of the litter box.
  • the electrostatic filter will also face a problem of saturation. Moreover, the device does not help in disinfection.
  • One aspect of the present invention is providing an air purification system which specially deals with removal of particulates and odor generated by household animals such as domestic dogs, cats, hamsters and etc.
  • an air purification system for household animals comprises an airflow generator for generating an airflow, an animal hair filter for removing animal hair, a particulate filter for removing small particulates, and an absorption media for removing animal odor.
  • the animal hair filter, particulate filter and absorption media are arranged along the direction of the airflow in turn, such that, the airflow containing animal hair, small particulates and animal odor passes through the animal hair filter, particulate filter and absorption media sequentially.
  • the animal hair filter comprises a substantially sheer layer and can be formed by different materials such as an electrostatic filter or a coarse dust filter.
  • the animal hair filter should be washable or readily disposable to ensure the user-friendliness of the invention.
  • the particulate filter can be formed from many different materials, such as glass fiber, cellulose fiber, and etc. Smaller particulate such as dust mites, louses, and pet dander can be readily captured by the particulate filter. The particles or substances that will trigger allergy of people will also be captured by the particulate filter.
  • the adsorption media is used to attract and chemically interact with odor and gases from the body or excretions of household animals.
  • the adsorption media can be mesoporous, microporous, or nanoporous materials.
  • the porous materials are materials with considerable surface area consisting of millions of pore structures within the structure. The porous materials indeed provide a huge surface area for the adsorption of molecules that give rise to household animal odor.
  • the adsorption media can also help to decompose the animal odor.
  • the household animal hair filter, the particulate filter and the adsorption media are chemically or physically blended with at least one type of nanoparticles for disinfection purpose.
  • the at least one type of nanoparticle can be silver nanoparticles, titanium oxide nanoparticles etc.
  • the biological pollutants such as viruses or bacteria will be inactivated by the nanoparticles after being captured by the filters or media in the present invention.
  • the air purification system for household animals may further comprise an oxidant source arranged in front of the animal hair filter along the airflow direction, in such a way, oxidant generated by the oxidant source passes through the animal hair filter, the particulate filter and the absorption media sequentially together with the airflow.
  • the oxidant can further help to inactivate the eggs of dust mites and louses trapped on the particulate filter. Combined with the airflow, the hatching of the pests from the eggs can be suppressed.
  • the oxidant can further facilitate the decomposition of the animal odor captured by the adsorption media.
  • the oxidant source As the oxidant source is put in the upstream position of the household animal hair filter.
  • the eggs of dust mites and louses sticking of the hair of the animal can be inactivated by the oxidant generated.
  • the presence of the nano-particles can further achieve a disinfection purpose.
  • an oxidant guard is equipped in the design to capture any remaining oxidant in the airflow.
  • the animal hair filter, particulate filter and absorption media can be enclosed by a housing with an air outlet and an air inlet.
  • the airflow generator can be arranged inside or outside the housing close to the air inlet and form an airflow drawing the animal hair, small particulates and animal odor into the housing for purification.
  • the oxidant source can be arranged inside the housing16 close to the air inlet.
  • the oxidant guard can be arranged next to the air outlet for filtering the excess oxidant.
  • the housing can be formed in any shape by any material according to actual requirement.
  • Figure 1 is a schematic diagram of the present invention.
  • Figure 2 demonstrates the animal hair and particulate removal of the present invention.
  • Figure 3 demonstrates the animal odor removal of the present invention
  • Figure 4 is another schematic diagram of the present invention.
  • Airflow 5 is generated by the airflow generator 15 which can be a blower, fan or an air pump.
  • the animal hair filter 2, particulate filter 3 and absorption media 4 are arranged along the direction of the airflow in turn, such that, the airflow 5 containing animal hair, small particulates and animal odor passes through the animal hair filter 2, particulate filter 3 and absorption media 4 sequentially.
  • the airflow 5 can draw the pet odor and particulates into the air purification system for treatment.
  • Nanoparticles 6, 7, and 8 are chemically or physically blended onto the filtering material of the animal hair filter 2, particulate filter 3, and adsorption media 4, respectively.
  • An oxidant guard 9 is added to filter away the left oxidant in the airflow 5.
  • animal hair filter 2, particulate filter 3 and absorption media 4 can be formed in any shape.
  • Figure 2 demonstrates the working principle of the present invention.
  • the oxidant source 1 is arranged in front of the animal hair filter 2, particulate filter 3 and adsorption media 4 along the direction of the airflow 5.
  • Oxidant 10 is generated by the oxidant source 1.
  • oxidant 10 can enter the air purification system.
  • animal hair 11 can be drawn into the air purification system.
  • Eggs of pests 12 such as dust mites and louses sticking on animal hair 11 can also be drawn into the air purification system.
  • Smaller particulates 13 such as pet dander or dust mites will also enter the air purification system along with airflow 5.
  • Animal hair 11 and eggs of pests 12 sticking on household animal hair 11 will be captured by the animal hair filter 2.
  • animal odor 14 will be treated by adsorption media 4 along with airflow 5.
  • the oxidant 10 can help to facilitate the decomposition of animal odor 14 in the adsorption media 4. Any excess oxidant 10 will be filtered away by the oxidant guard 9.
  • the oxidant source 1 needs to be powered by electricity.
  • the oxidants 10 generated are highly reactive and thus have a very short lifetime.
  • the high reactivity of the oxidant 10 can help in the disinfection process and the breakdown of animal odor.
  • the short lifetime of the oxidant can make sure no leakage of the oxidant 10 to the surrounding environment.
  • the animal hair filter 2 is mainly used to remove animal hair.
  • the sheer layer of the animal hair filter 2 will have a very low air resistance to avoid the creation of noise in the air purification system.
  • the animal hair filter 2 can be composed of different materials including an electrostatic filter or a coarse dust filter.
  • the animal hair filter 2 is washable or readily disposable to ensure the user-friendliness of the present invention.
  • Nanoparticle 6 is chemically or physically blended onto the animal hair filter 2.
  • the nanoparticle 6 can be silver nanoparticles or titanium oxide nanoparticles. The presence of nanoparticle 6 can help to suppress and minimize the bacterial growth on the household animal filter 2.
  • Nanoparticle 6 can act as a disinfection agent.
  • the particulate filter 3 is mainly used to remove smaller particulates such as dust mites, pet dander and other particles from the household animal that may trigger allergy reaction to people.
  • the particulate filter 3 can be composed of glass fiber, polymeric fiber or cellulose fiber. The choice of the material for the particulate filter should make sure it will not create a high air resistance to avoid the creation of noise in the air purification system.
  • Nanoparticle 7 is chemically or physically blended onto particulate filter 3.
  • the nanoparticle 7 can be silver nanoparticle, titanium oxide nanoparticles etc. The presence of nanoparticle 7 can help to suppress and minimize the bacterial growth on the particulate filter 3.
  • Nanoparticle 7 can act as a disinfection agent.
  • the adsorption media 4 is mainly used to trap and decompose the household animal odor 14.
  • the adsorption media 4 can attract and chemically interact with household animal odor and odors from the body or excretion of the household animals.
  • the adsorption media 4 can be mesoporous, microporous, or nanoporous materials.
  • the large surface area of the adsorption media 4 provides an area for adsorption and decomposition of household animal odor 14.
  • the oxidants generated by the oxidant source 1 will also enter the adsorption media 4.
  • the adsorption media 4 will aid to bring the molecules of household animal odor 14 in close contact with the oxidant 9. This can facilitate the decomposition of the household animal odor 14 in the adsorption media 4.
  • the nanoparticle 8 can be silver nanoparticle, titanium oxide nanoparticle etc.
  • the presence of nanoparticle 8 can help to suppress and minimize the bacterial growth on the adsorption media 4.
  • Nanoparticle 8 can act as a disinfection agent. All the nanoparticles 6, 7, and 8 used in the present invention have to be non-poisonous to pet and human.
  • the oxidant guard 9 is used to filter away remaining, if there is any, oxidant 10 in the airflow 5.
  • the oxidant guard 9 can be polymeric material, metallic material etc.
  • Animal hair 11 always has some particles that cause allergy or eggs of pests 12 such as dust mites and louses sticking on it.
  • the animal hair 11 together with the eggs of the pests 12 sticking on it can be captured by animal hair filter 2 without creating a noise in the air purification system.
  • the oxidants 10 generated by oxidant source 1 can be bought to the animal hair filter 2 along with airflow 5. It can suppress the hatching of the species such as dust mites and louses from the eggs of pest 12. With the presence of nanoparticle 6, the growth of any bacteria on the hair 11 or eggs 12 can also be suppressed.
  • Smaller particulates 13 such as pet dander or dust mites can be captured by the particulate filter 3.
  • the nanoparticles 7 in the particulate filter 3 can help in disinfection of the particulates captured by particulate filter 3.
  • Animal odor 14 can be captured and decomposed by adsorption media 4.
  • the oxidant 10 can facilitate the decomposition of animal odor 14. Any excess oxidant can be filtered away by the oxidant guard 9.
  • FIG. 4 is another schematic diagram of the present invention.
  • the air purification system for household animals comprising an airflow generator 15, an oxidant source 1, an animal hair filter 2, a particulate filter 3, an adsorption media 4, a housing 16 and a oxidant guard 9 is shown.
  • the animal hair filter 2, particulate filter 3 and absorption media 4 are arranged along the direction of the airflow in turn, such that, the airflow 5 containing animal hair, small particulates and animal odor passes through the animal hair filter 2, particulate filter 3 and absorption media 4 sequentially.
  • the animal hair filter 2, particulate filter 3 and absorption media 4 can be enclosed by a housing 16 with an air outlet 17 and an air inlet 18.
  • the airflow generator 15 can be arranged inside or outside the housing 16 close to the air inlet 18 and form an airflow 5 drawing the animal hair, small particulates and animal odor into the housing for purification.
  • the oxidant source 1 can be arranged inside the housing 16 close to the air inlet 18.
  • the oxidant guard 9 can be arranged next to the air outlet 17 for filtering the excess oxidant.
  • the housing 16 can be formed in any shape by any material according to actual requirement.
  • the work principle of the air purification system for household animals may refer to Fig. 2 and 3, and is not described here for concise.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • General Engineering & Computer Science (AREA)
  • Animal Husbandry (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Clinical Laboratory Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

An air purification system for household animals comprises an airflow generator (15) for generating airflow (5), an animal hair filter (2) for removing animal hair, a particulate filter (3) for removing small particulates, and an absorption media (4) for removing animal odor. The animal hair filter (2), particulate filter (3) and absorption media (4) are arranged along the direction of the airflow in turn, such that, the airflow (5) containing animal hair, small particulates and animal odor passes through the animal hair filter (2), particulate filter (3) and absorption media (4) sequentially. In such a way, the animal hair, small particulates and animal odor contained in the airflow is removed.

Description

AIR PURIFICATION SYSTEM FOR HOUSEHOLD ANIMALS
The present invention relates to a design for household animal odor removal. In particular, the present invention relates to an air purification system which specially deals with air-related problems caused by household animals such as domestic dogs, cats and hamsters.
Background of invention
Nowadays, raising household animals such as dogs or cats gas been proven to have advantage to elderly people, busy city people and to children. However, factors such as living area, opinions of family members and etc. may influence the final decision in choosing to raise one. Among various factors, the odor and other health related issues caused by the household animals are the most critical in the decision making process. Household animals such as dogs, cats and hamsters have their unique natural odor. Such natural odor can be unpleasant to the owners of the animals. Nowadays, household animals are mostly kept indoor, the natural odor of the animal will accumulate indoor and deposit onto furniture such as carpet, sofa, cushion etc. Upon accumulation, the concentration of the natural odor can reach a noxious level. This effect will be predominant especially during summer time, when air conditioning is in use, the smell of excretion combined with the natural odor of the animal is hard to be removed from the house. Some animal owners may have to keep their pets in some outdoor environment such as balcony or garden to prevent the accumulation of the animal odor indoor. Some pet owners may use different accessories such as pet litter box, odor absorbing mat, odor removal cleaning agents and etc. to keep the animal odor at a minimal level. Apart from odor, the dust and animal dander from pet may trigger allergy or other more serious symptoms to people.
Stepanian (US Pat. No. 4,308,825) proposed a device for removing pet odors and holding pet waste materials including a receptacle absorbant, screen material, porous material. The invention allows litter for household animals to last longer and to allow the pet owner to care for the pet in a more economical fashion. However, the invention can only control the animal odor at the location of the litter box. The animal odors at other locations have not been solved.
Jacquart (US Pat. No. US2012/0118239A1) proposed an odor reducing pet bed that includes a supply of powdered carbon fiber for absorbing odors and at the same time provides a soft and comfortable pad for domestic animals to rest on. The carbon fiber will be saturated upon usage and require replacement. The replacement frequency may vary under different environmental conditions. The odor removal is based on diffusion into the odor reducing pet bed, where the effective area will be limited.
Walker (US Pat. No. 5,819,688) proposed a pet animal odor absorbing mat comprising of a fibrous material incorporated with a zeolite material in the presence of a non-toxic binder. The fibrous base material can absorb a substantial amount of liquid discharge of an animal readily and easily. The non-toxic odorless zeolite material can trap odors and gases from an animal body. Same as other invention that the odor removal component is embedded inside a pad or a mat, the component will face a problem of saturation and require replacement. Furthermore, as the invention relies on diffusion to achieve odor removal, the efficiency and the effective area is limited.
Mitrano and co-worker (US Pat. No. 4,308,825) introduced an odor reducing pet collar for household animal. The collar is encased with activated carbon and secured by a tie and attachment. The activated carbon encased inside the collar provides a large surface area for the adsorption of the odor of the animal. When the collar is encircled around the neck of the pet, the odors originating from the pet can be immediately captured by the activated carbon in the collar. The collar will be discarded and replaced by a new one when the function is exhausted. This invention can help to deal with the animal odor problem, the collar equipped with activated charcoal can prevent the odor to diffuse in a large area. However, activated charcoal will be saturated upon usage. The frequent dispose of the saturated collar will give rise to a cost and environmental concern. Moreover, not all the household animals are suitable for a collar.
Geer and co-worker (US Pat. No. US2007/0215057A1) introduced a unit for eliminating offensive odors. The unit consists of a substantially sheer electrostatic filter sheet and a silent blower. The blower is designed to operate at a decibel level that does not offend the household animal. The invention also consist of an animal litter box, the litter box has an enclosure that allows animal to enter and exit, leaving the bathroom deposits inside. The invention can only control the odor problem at the location of the litter box. The electrostatic filter will also face a problem of saturation. Moreover, the device does not help in disinfection.
For the invention mentioned before, they cannot deal with the other problems caused by the hair, dust mites, louses and other relevant problems related to household animals. These problems may trigger allergy, or even cause illness for some of the household animal owners or their family members.
Summary of Invention
One aspect of the present invention is providing an air purification system which specially deals with removal of particulates and odor generated by household animals such as domestic dogs, cats, hamsters and etc.
According to one aspect of present invention, an air purification system for household animals is provided. Such air purification system comprises an airflow generator for generating an airflow, an animal hair filter for removing animal hair, a particulate filter for removing small particulates, and an absorption media for removing animal odor. In present invention, the animal hair filter, particulate filter and absorption media are arranged along the direction of the airflow in turn, such that, the airflow containing animal hair, small particulates and animal odor passes through the animal hair filter, particulate filter and absorption media sequentially.
Optionally, the animal hair filter comprises a substantially sheer layer and can be formed by different materials such as an electrostatic filter or a coarse dust filter. The animal hair filter should be washable or readily disposable to ensure the user-friendliness of the invention.
Optionally, the particulate filter can be formed from many different materials, such as glass fiber, cellulose fiber, and etc. Smaller particulate such as dust mites, louses, and pet dander can be readily captured by the particulate filter. The particles or substances that will trigger allergy of people will also be captured by the particulate filter.
Optionally, the adsorption media is used to attract and chemically interact with odor and gases from the body or excretions of household animals. The adsorption media can be mesoporous, microporous, or nanoporous materials. The porous materials are materials with considerable surface area consisting of millions of pore structures within the structure. The porous materials indeed provide a huge surface area for the adsorption of molecules that give rise to household animal odor. The adsorption media can also help to decompose the animal odor.
Optionally, the household animal hair filter, the particulate filter and the adsorption media are chemically or physically blended with at least one type of nanoparticles for disinfection purpose. The at least one type of nanoparticle can be silver nanoparticles, titanium oxide nanoparticles etc. The biological pollutants such as viruses or bacteria will be inactivated by the nanoparticles after being captured by the filters or media in the present invention.
Optionally, the air purification system for household animals according to present application may further comprise an oxidant source arranged in front of the animal hair filter along the airflow direction, in such a way, oxidant generated by the oxidant source passes through the animal hair filter, the particulate filter and the absorption media sequentially together with the airflow. The oxidant can further help to inactivate the eggs of dust mites and louses trapped on the particulate filter. Combined with the airflow, the hatching of the pests from the eggs can be suppressed. The oxidant can further facilitate the decomposition of the animal odor captured by the adsorption media.
As the oxidant source is put in the upstream position of the household animal hair filter. The eggs of dust mites and louses sticking of the hair of the animal can be inactivated by the oxidant generated. The presence of the nano-particles can further achieve a disinfection purpose.
Optionally, an oxidant guard is equipped in the design to capture any remaining oxidant in the airflow.
Optionally, the animal hair filter, particulate filter and absorption media can be enclosed by a housing with an air outlet and an air inlet. The airflow generator can be arranged inside or outside the housing close to the air inlet and form an airflow drawing the animal hair, small particulates and animal odor into the housing for purification. The oxidant source can be arranged inside the housing16 close to the air inlet. The oxidant guard can be arranged next to the air outlet for filtering the excess oxidant. The housing can be formed in any shape by any material according to actual requirement.
Brief Description of the Drawings
The following drawings illustrate preferred, but not exclusive embodiments of the inventions.
Figure 1 is a schematic diagram of the present invention.
Figure 2 demonstrates the animal hair and particulate removal of the present invention.
Figure 3 demonstrates the animal odor removal of the present invention;
Figure 4 is another schematic diagram of the present invention.
Detailed Description of the Preferred Embodiments
These and other advantage, aspect and novel features of the present invention, as well as details of an illustrated embodiment thereof, will be more fully understand from the following description and drawings. While various embodiments of the present invention has been presented by way of example only, and not limitation.
Referring to Figure 1, the air purification system for household animals comprising an airflow generator 15, an oxidant source 1, an animal hair filter 2, a particulate filter 3, and an adsorption media 4 is shown. Airflow 5 is generated by the airflow generator 15 which can be a blower, fan or an air pump. As shown in Fig.1, the animal hair filter 2, particulate filter 3 and absorption media 4 are arranged along the direction of the airflow in turn, such that, the airflow 5 containing animal hair, small particulates and animal odor passes through the animal hair filter 2, particulate filter 3 and absorption media 4 sequentially. The airflow 5 can draw the pet odor and particulates into the air purification system for treatment. Nanoparticles 6, 7, and 8 are chemically or physically blended onto the filtering material of the animal hair filter 2, particulate filter 3, and adsorption media 4, respectively. An oxidant guard 9 is added to filter away the left oxidant in the airflow 5.
One skilled in the art knows that the animal hair filter 2, particulate filter 3 and absorption media 4 can be formed in any shape.
Figure 2 demonstrates the working principle of the present invention. Referring back for Fig.1, the oxidant source 1 is arranged in front of the animal hair filter 2, particulate filter 3 and adsorption media 4 along the direction of the airflow 5. Oxidant 10 is generated by the oxidant source 1. With the aid of airflow 5, oxidant 10 can enter the air purification system. Along with the airflow 5, animal hair 11 can be drawn into the air purification system. Eggs of pests 12 such as dust mites and louses sticking on animal hair 11 can also be drawn into the air purification system. Smaller particulates 13 such as pet dander or dust mites will also enter the air purification system along with airflow 5. Animal hair 11 and eggs of pests 12 sticking on household animal hair 11 will be captured by the animal hair filter 2.
As shown in Figure 3, animal odor 14 will be treated by adsorption media 4 along with airflow 5. The oxidant 10 can help to facilitate the decomposition of animal odor 14 in the adsorption media 4. Any excess oxidant 10 will be filtered away by the oxidant guard 9.
The oxidant source 1 needs to be powered by electricity. The oxidants 10 generated are highly reactive and thus have a very short lifetime. The high reactivity of the oxidant 10 can help in the disinfection process and the breakdown of animal odor. The short lifetime of the oxidant can make sure no leakage of the oxidant 10 to the surrounding environment.
The animal hair filter 2 is mainly used to remove animal hair. The sheer layer of the animal hair filter 2 will have a very low air resistance to avoid the creation of noise in the air purification system. The animal hair filter 2 can be composed of different materials including an electrostatic filter or a coarse dust filter. The animal hair filter 2 is washable or readily disposable to ensure the user-friendliness of the present invention. Nanoparticle 6 is chemically or physically blended onto the animal hair filter 2. The nanoparticle 6 can be silver nanoparticles or titanium oxide nanoparticles. The presence of nanoparticle 6 can help to suppress and minimize the bacterial growth on the household animal filter 2. Nanoparticle 6 can act as a disinfection agent.
The particulate filter 3 is mainly used to remove smaller particulates such as dust mites, pet dander and other particles from the household animal that may trigger allergy reaction to people. The particulate filter 3 can be composed of glass fiber, polymeric fiber or cellulose fiber. The choice of the material for the particulate filter should make sure it will not create a high air resistance to avoid the creation of noise in the air purification system. Nanoparticle 7 is chemically or physically blended onto particulate filter 3. The nanoparticle 7 can be silver nanoparticle, titanium oxide nanoparticles etc. The presence of nanoparticle 7 can help to suppress and minimize the bacterial growth on the particulate filter 3. Nanoparticle 7 can act as a disinfection agent.
The adsorption media 4 is mainly used to trap and decompose the household animal odor 14. The adsorption media 4 can attract and chemically interact with household animal odor and odors from the body or excretion of the household animals. The adsorption media 4 can be mesoporous, microporous, or nanoporous materials. The large surface area of the adsorption media 4 provides an area for adsorption and decomposition of household animal odor 14. The oxidants generated by the oxidant source 1 will also enter the adsorption media 4. The adsorption media 4 will aid to bring the molecules of household animal odor 14 in close contact with the oxidant 9. This can facilitate the decomposition of the household animal odor 14 in the adsorption media 4. The nanoparticle 8 can be silver nanoparticle, titanium oxide nanoparticle etc. The presence of nanoparticle 8 can help to suppress and minimize the bacterial growth on the adsorption media 4. Nanoparticle 8 can act as a disinfection agent. All the nanoparticles 6, 7, and 8 used in the present invention have to be non-poisonous to pet and human.
The oxidant guard 9 is used to filter away remaining, if there is any, oxidant 10 in the airflow 5. The oxidant guard 9 can be polymeric material, metallic material etc.
Animal hair 11 always has some particles that cause allergy or eggs of pests 12 such as dust mites and louses sticking on it. The animal hair 11 together with the eggs of the pests 12 sticking on it can be captured by animal hair filter 2 without creating a noise in the air purification system. The oxidants 10 generated by oxidant source 1 can be bought to the animal hair filter 2 along with airflow 5. It can suppress the hatching of the species such as dust mites and louses from the eggs of pest 12. With the presence of nanoparticle 6, the growth of any bacteria on the hair 11 or eggs 12 can also be suppressed.
Smaller particulates 13 such as pet dander or dust mites can be captured by the particulate filter 3. The nanoparticles 7 in the particulate filter 3 can help in disinfection of the particulates captured by particulate filter 3.
Animal odor 14 can be captured and decomposed by adsorption media 4. The oxidant 10 can facilitate the decomposition of animal odor 14. Any excess oxidant can be filtered away by the oxidant guard 9.
Figure 4 is another schematic diagram of the present invention. Referring Fig.4, the air purification system for household animals comprising an airflow generator 15, an oxidant source 1, an animal hair filter 2, a particulate filter 3, an adsorption media 4, a housing 16 and a oxidant guard 9 is shown. The animal hair filter 2, particulate filter 3 and absorption media 4 are arranged along the direction of the airflow in turn, such that, the airflow 5 containing animal hair, small particulates and animal odor passes through the animal hair filter 2, particulate filter 3 and absorption media 4 sequentially. Furthermore, the animal hair filter 2, particulate filter 3 and absorption media 4 can be enclosed by a housing 16 with an air outlet 17 and an air inlet 18. The airflow generator 15 can be arranged inside or outside the housing 16 close to the air inlet 18 and form an airflow 5 drawing the animal hair, small particulates and animal odor into the housing for purification. The oxidant source 1 can be arranged inside the housing 16 close to the air inlet 18. The oxidant guard 9 can be arranged next to the air outlet 17 for filtering the excess oxidant. The housing 16 can be formed in any shape by any material according to actual requirement. The work principle of the air purification system for household animals may refer to Fig. 2 and 3, and is not described here for concise.
The foregoing description is just the preferred embodiment of the invention. It is not intended to exhaustive or to limit the invention. Any modifications, variations, and amelioration without departing from the spirit and scope of the present invention should be included in the scope of the prevent invention.

Claims (11)

1. An air purification system for household animals comprising:
an airflow generator for generating an airflow;
an animal hair filter for removing animal hair;
a particulate filter for removing small particulates; and
an absorption media for removing animal odor;
wherein, the animal hair filter, the particulate filter and the absorption media are arranged along a direction of the airflow in turn, such that, the airflow containing the animal hair, small particulates and animal odor passes through the animal hair filter, the particulate filter and the absorption media sequentially and then the animal hair, small particulates and animal odor are removed by the air purification system for household animals.
2. The air purification system for household animals according to claim 1, wherein, further comprising an oxidant source arranged in front of the animal hair filter along the airflow direction, in such a way, oxidant generated by the oxidant source passes through the animal hair filter, the particulate filter and the absorption media sequentially together with the airflow to help removing the small particulates and animal odor.
3. The air purification system for household animals according to claim 2, wherein, further comprising an oxidant guard to capture any remaining oxidant in the airflow.
4. The air purification system for household animals according to claim 3, further comprising a housing with an air outlet and an air inlet enclosing the oxidant source, the animal hair filter, the particulate filter and the absorption media; the airflow generator is arranged inside or outside the housing close to the air inlet and forms the airflow drawing the animal hair, small particulates and animal odor into the housing for purification, the oxidant source is arranged inside the housing close to the air inlet, and the oxidant guard is arranged next to the air outlet for filtering the excess oxidant.
5. The air purification system for household animals according to any one of claims 1-4, wherein, the animal hair filter comprises a substantially sheer layer and is formed by an electrostatic filter or a coarse dust filter.
6. The air purification system for household animals according to any one of claims 1-4, wherein, the animal hair filter is washable or readily disposable to ensure user-friendliness.
7. The air purification system for household animals according to any one of claims 1-4, wherein, the particulate filter is formed from glass fiber or cellulose fiber and used for capture smaller particulate that trigger allergy of people.
8. The air purification system for household animals according to any one of claims 1-4, wherein, the adsorption media is mesoporous, microporous, or nanoporous materials with considerable surface area consisting of millions of pore structures for capturing and decomposing the animal odor.
9. The air purification system for household animals according to any one of claims 1-4, wherein, the household animal hair filter, the particulate filter and the adsorption media are chemically or physically blended with and least one type of nanoparticles for disinfection purpose.
10. The air purification system for household animals according to claim 9, wherein, the at least one type of nanoparticle can be silver nanoparticles, titanium oxide nanoparticles or a mixture of them that inactivating biological pollutants in the airflow.
11. The air purification system for household animals according to claim 2, wherein, the oxidant generated by the oxidant source helps to inactivate eggs of dust mites and louses trapped on the particulate filter, suppress hatching of pests from the eggs combined with the airflow, and facilitate decomposition of the animal odor captured by the adsorption media.
PCT/CN2012/081478 2012-09-17 2012-09-17 Air purification system for household animals WO2014040293A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019063834A3 (en) * 2017-09-29 2019-05-31 Isaac Albets Ramonet Air filtration unit
CN111512982A (en) * 2020-06-02 2020-08-11 济源市阳光兔业科技有限公司 Rabbit excrement processing apparatus
CN112106677A (en) * 2020-09-22 2020-12-22 青岛科技大学 Clean pet nest of intelligence
CN115518472A (en) * 2021-06-25 2022-12-27 佛山市顺德区美的电子科技有限公司 Air treatment equipment filter mesh adjusting method, device, equipment and storage medium

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CN102577998A (en) * 2012-03-23 2012-07-18 李波 Air purifier

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JP2002223851A (en) * 2001-02-06 2002-08-13 Matsushita Electric Ind Co Ltd Equipment to brush pet
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019063834A3 (en) * 2017-09-29 2019-05-31 Isaac Albets Ramonet Air filtration unit
CN111512982A (en) * 2020-06-02 2020-08-11 济源市阳光兔业科技有限公司 Rabbit excrement processing apparatus
CN111512982B (en) * 2020-06-02 2021-08-17 济源市阳光兔业科技有限公司 Rabbit excrement processing apparatus
CN112106677A (en) * 2020-09-22 2020-12-22 青岛科技大学 Clean pet nest of intelligence
CN115518472A (en) * 2021-06-25 2022-12-27 佛山市顺德区美的电子科技有限公司 Air treatment equipment filter mesh adjusting method, device, equipment and storage medium

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