CN104984600A - Multi-layer composite filtering net for HEPA filter - Google Patents
Multi-layer composite filtering net for HEPA filter Download PDFInfo
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- CN104984600A CN104984600A CN201510341691.6A CN201510341691A CN104984600A CN 104984600 A CN104984600 A CN 104984600A CN 201510341691 A CN201510341691 A CN 201510341691A CN 104984600 A CN104984600 A CN 104984600A
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Abstract
The invention provides a multi-layer composite filtering net for an HEPA filter. The multi-layer composite filtering net for the HEPA filter is characterized by sequentially comprising polytetrafluoroethylene membrane polyester non-woven cloth, an activated-carbon-supported formaldehyde scavenger filtering net, an HEPA filtering net and polytetrafluoroethylene membrane polyester non-woven cloth from the windward end to the downwind end. A single HEPA filtering net of an HEPA filter of the prior art is replaced by the multi-layer composite filtering net, not only conventional particles but also formaldehyde can be efficiently removed, the application range is wide, the filtering efficiency is high, and the service life of the HEPA filtering net is prolonged.
Description
Technical field
The invention belongs to chemical field, be specifically related to a kind of HEPA filter MULTILAYER COMPOSITE screen pack.
Background technology
HEPA filter (being also called high efficiency particle air filter) plays vital effect in purification of air industry.High efficiency particle air filter can be widely used in optical electron, the manufacture of LCD liquid crystal, biological medicine, precision instrument, beverage/food, air conditioning terminal air-supply place in the industry dust-free purification workshops such as PCB printing.
High efficiency particle air filter, basic demand is that filter efficiency is high, flow resistance is low, can the long period uses continuously to reduce later stage consumables cost.
HEPA filter, primarily of a few part composition of filter core, blower fan and housing.Wherein HEPA screen pack (filter core) plays vital effect.In prior art, HEPA screen pack is mainly PP filter paper, glass fibre, compound PP/PET filter paper, melt-blown terylene non-woven fabric and melt-blown glass fibre five kinds of materials, generally that the particle being 0.1-0.5 μm for diameter filters, it can reach more than 99.97% to the particle removal efficiency that diameter is more than 0.3 micron (1/200 of hair diameter), is the most effective filtering mediums of pollutant such as smog, dust and bacterium.It is low to there is filter efficiency in current HEPA screen pack, and service life is short, the problem such as can not effectively to remove for formaldehyde.
Formaldehyde is the irritative gas of a kind of colourless, Yi Rong, is generally acknowledged strong poisonous substance matter, has strong toxicity to the murder by poisoning of human body, be defined as suspicious teratogenesis, carcinogen by the World Health Organization (WHO).Formaldehyde can absorb through respiratory tract, and by making the modes such as tissue active oxygen increase, peroxidatic reaction of lipid, the immune system affecting body damage body, causes bronchial astehma etc.; Formaldehyde also has spread effect to skin and mucosa, and allergic dermatitis, color spot, skin can be caused downright bad; Except, formaldehyde also has strong carcinogenicity, can cause rhinocarcinoma, leukemia etc.And high-concentration formaldehyde has harm to respiratory system, nervous system, immune system, liver.As can be seen here, the formaldehyde of formaldehyde especially high concentration, seriously can jeopardize health, have to allow people pay much attention to.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention provides a kind of HEPA filter MULTILAYER COMPOSITE screen pack, single HEPA screen pack in HEPA filter in prior art is replaced with MULTILAYER COMPOSITE screen pack by it, except conventional granulates beyond the region of objective existence can be removed, formaldehyde can also be removed efficiently, applied widely, filter efficiency is high, and extends the service life of HEPA screen pack.
For achieving the above object, this invention takes following technical scheme:
A kind of HEPA filter MULTILAYER COMPOSITE screen pack, it comprises from windward end in turn to leeward end: polyfluortetraethylefilm film coated polyester non-woven fabric, activated carbon supported formaldehyde scavenger screen pack, HEPA screen pack, polyfluortetraethylefilm film coated polyester non-woven fabric.
HEPA filter comprises housing, blower fan and filter core (i.e. screen pack), described blower fan is used to provide source of the gas to be clean, the end of windward described in the present invention refers to the air inlet end of blower fan, namely forms one end of windward side at described HEPA filter MULTILAYER COMPOSITE screen pack; Described leeward end refers to the air opening end of blower fan, namely forms one end of lee face at described HEPA filter MULTILAYER COMPOSITE screen pack.
Wherein, described polyfluortetraethylefilm film coated polyester non-woven fabric can directly be obtained by commercially available purchase, also can by preparing.Grammes per square metre is generally 400-500g/m
2, serviceability temperature is less than 130 DEG C, thickness 1.6-1.8mm, and can be needle punched non-woven fabrics, spunlace non-woven cloth, melt spraying non-woven fabrics etc., overlay film Air permenbility be 1.8-3.6m
3/ (m
2min).All there is sale in Ke Rui bay, Beijing Science and Technology Ltd. etc.
The concrete preparation method of described polyfluortetraethylefilm film coated polyester non-woven fabric can be: will be dipped in polytetrafluoroethyl-ne aqueous solution under the polyester fiber conveniently normal temperature such as needle punched non-woven fabrics, spunlace non-woven cloth or melt spraying non-woven fabrics of making of technique, the concentration of polytetrafluoroethylene (PTFE) is 5-20%, soak time is 10-40s, then through 120 ~ 150 DEG C of oven dry, drying time is 1 ~ 10 minute, obtains and contains the polyfluortetraethylefilm film coated polyester non-woven fabric that polytetrafluoroethylene (PTFE) percentage by weight is 0.1 ~ 10%.
Described HEPA screen pack is for reaching any one HEPA screen pack of GB/T 13554-2008 " high efficiency particle air filter " national standard.
Described activated carbon supported formaldehyde scavenger screen pack obtains for spraying activated carbon supported formaldehyde scavenger on polyester non-woven fabric, can apply by single or double, and on polyester non-woven fabric, total coating concentration is 30-70g/m
2.
Described activated carbon supported formaldehyde scavenger is grouped into by the one-tenth of following percentage by weight: activated carbon supported Mn oxide 8 ~ 15%, methanal trapping agent 5 ~ 8%, absorbent charcoal loading titanium dioxide 4 ~ 8%, nano-silver colloid 0.1 ~ 0.5%, surplus are pure water.
Described methanal trapping agent is selected from one or both the mixture in 5,5-methylimidazole alkane-2,4-diketone, 1-(2-hydroxyethyl)-2-imidazolidinone; Preferably, 5,5-methylimidazole alkane-2, the 4-diketone of described methanal trapping agent by 40 ~ 60wt% and the blended composition of 1-(2-hydroxyethyl)-2-imidazolidinone of 40 ~ 60wt%.
Described activated carbon supported Mn oxide, can immerse liquor potassic permanganate by active carbon and be prepared.
Described nano-silver colloid, can prepare or by commercially available acquisition.
Described absorbent charcoal loading titanium dioxide, can use physical load method (as powder sintering method, hot glue bonding etc.) or chemical load method (as ion-exchange, sol-gal process etc.).The particle diameter that the present invention prepares absorbent charcoal loading titanium dioxide is preferably 15-30nm, and selected titanium dioxide is preferably anatase titanium dioxide, and selected anatase titania support can be by Ti (OH)
4obtained after high-temperature roasting, also directly can buy commercially available anatase titanium dioxide and obtain, the model of commercially available anatase titanium dioxide is preferably VK-TA18, VK-TA18H, VK-TA18H.
The method of the activated carbon supported formaldehyde scavenger described in preparation, comprises the steps:
(1) get the absorbent charcoal loading titanium dioxide of formula ratio, nano-silver colloid joins in pure water, mix and blend 20 ~ 40 minutes, obtains mixed liquor;
(2) activated carbon supported Mn oxide, the methanal trapping agent of getting formula ratio join in pure water, stir, obtain mixed liquor;
(3) mixed liquor of step (2) gained is joined in the mixed liquor of step (1) gained, stir 20 ~ 40 minutes, to obtain final product.
Described activated carbon supported formaldehyde scavenger screen pack thickness is 1.6-1.8mm, and can be needle punched non-woven fabrics, spunlace non-woven cloth, melt spraying non-woven fabrics etc., overlay film Air permenbility be 1.8-3.6m
3/ (m
2min).
Wherein, 5,5-methylimidazole alkane-2,4-diketone, No. CAS: 77-71-4.
1-(2-hydroxyethyl)-2-imidazolidinone, No. CAS: 3699-54-5.
HEPA filter MULTILAYER COMPOSITE screen pack of the present invention, it comprises from windward end in turn to leeward end: polyfluortetraethylefilm film coated polyester non-woven fabric, activated carbon supported formaldehyde scavenger screen pack, HEPA screen pack, polyfluortetraethylefilm film coated polyester non-woven fabric.Each layer is placed in parallel in HEPA filter, can contact or leave certain gap between often two-layer, and the vertical range between often two-layer is preferably 0-5mm, more preferably 0.5-1mm.
Advantage of the present invention:
Polytetrafluoroethylene (PTFE) (PTFE) has stronger oxidative resistance, strong alkali-acid resistance corrosivity, and good antistick characteristic, therefore, be in the wind end and leeward end use polyfluortetraethylefilm film coated polyester non-woven fabric respectively, effectively can improve the service life of HEPA screen pack.
Activated carbon supported formaldehyde scavenger screen pack has efficient formaldehyde clearance.
Single HEPA screen pack in HEPA filter in prior art is replaced with MULTILAYER COMPOSITE screen pack by the present invention, except conventional granulates beyond the region of objective existence can be removed, formaldehyde can also be removed efficiently, applied widely, filter efficiency is high, and extends the service life of HEPA screen pack.
Detailed description of the invention
Be below specific embodiments of the invention, technical scheme of the present invention is further described, but protection scope of the present invention is not limited to these embodiments.Every do not deviate from the present invention's design change or equivalent substituting include within protection scope of the present invention.
The nano-silver colloid used in embodiment and comparative example is prepared with reference to the method in " interaction of nano-silver colloid and protein and application " (volume 2 phase June the 26th in 2003) of Xia Chuanjun etc., 1ml1.7%AgNO
3solution dilution, to 50ml, adds 1% tannic acid 0.5ml under stirring, then adds 2-3 and drip 1%K
2cO
3solution, obtains red tan solution, then dilute with water 4 times, and namely obtaining silver ion molar concentration is 5 × 10
-4the nano-silver colloid of mol/L.
The absorbent charcoal loading titanium dioxide used in embodiment and comparative example adopts sol-gal process, get 60ml isopropyl titanate, add 240ml isopropyl alcohol, 10ml nitric acid successively, after at room temperature stirring 15min, add 120 order graininess cocoanut active charcoal 50g, then distilled water 10ml is slowly added, continue stirring obtain black sol, 25 DEG C vibration 20min after at 80 DEG C freeze-day with constant temperature 24h, grind with agate mortar, in Muffle furnace, calcine 4h, cooling is taken out.
The activated carbon supported Mn oxide used in embodiment and comparative example is that (specific volume is 0.08 ~ 0.10cm by 50g graininess apricot shell active carbon
3/ g) immerse in the liquor potassic permanganate of 400ml 0.079mol/L, then be placed in ultrasonator and vibrate 2h, then take out oven dry, under 650 DEG C of nitrogen atmospheres, heat 0.5h, take out after cooling.
The polyfluortetraethylefilm film coated polyester non-woven fabric used in embodiment and comparative example is bought from Ke Rui bay, Beijing Science and Technology Ltd..Grammes per square metre is generally 500g/m
2, serviceability temperature is less than 130 DEG C, thickness 1.6mm, is needle punched non-woven fabrics, and overlay film Air permenbility is 1.8m
3/ (m
2min).
The HEPA screen pack used in embodiment and comparative example is the HY-HEPA-0022 screen pack that Dongguan City Hong Yuan purifies cleaning equipment Co., Ltd and produces.
Embodiment 1
A, prepare activated carbon supported formaldehyde scavenger, be grouped into by the one-tenth of following percentage by weight: activated carbon supported Mn oxide 8g, 5,5-methylimidazole alkane-2,4-diketone 8g, absorbent charcoal loading titanium dioxide 8g, nano-silver colloid 0.1g, pure water 75.9g.
Preparation process is as follows:
(1) get the absorbent charcoal loading titanium dioxide of formula ratio, nano-silver colloid joins in 35.9g pure water, mix and blend 30 minutes, obtains mixed liquor;
(2) get the activated carbon supported Mn oxide of formula ratio, 5,5-methylimidazole alkane-2,4-diketone join in 40g pure water, stir, obtain mixed liquor;
(3) mixed liquor of step (2) gained is joined in the mixed liquor of step (1) gained, stir 30 minutes, get product.
B, activated carbon supported formaldehyde scavenger is coated on a polyester needle punched non-woven fabrics, two-sidedly all applies 30g/m
2, then polyester non-woven fabric applying concentration is 60g/m
2, obtain activated carbon supported formaldehyde scavenger screen pack, the grammes per square metre of screen pack is 500g/m
2, thickness 1.6mm, Air permenbility is 2.2m
3/ (m
2min).
C, in turn polyfluortetraethylefilm film coated polyester non-woven fabric, activated carbon supported formaldehyde scavenger screen pack, HEPA screen pack, each layer of polyfluortetraethylefilm film coated polyester non-woven fabric are placed in parallel in HEPA filter from windward end to leeward end, vertical range between often two-layer is 0.5mm, is the HEPA filter MULTILAYER COMPOSITE screen pack of embodiment 1.
Embodiment 2
According to the method described in embodiment 1,5,5-methylimidazole alkane-2,4-diketone is replaced with 1-(2-hydroxyethyl)-2-imidazolidinone.
Embodiment 3
According to the method described in embodiment 1,5,5-methylimidazole alkane-2,4-diketone 8g is replaced with 5,5-methylimidazole alkane-2,4-diketone 4g and 1-(2-hydroxyethyl)-2-imidazolidinone 4g.
Comparative example 1
According to the method described in embodiment 3, activated carbon supported Mn oxide 8g and absorbent charcoal loading titanium dioxide 8g is replaced with activated carbon supported Mn oxide 16g.
Activated carbon supported formaldehyde scavenger preparation process is as follows:
(1) nano-silver colloid getting formula ratio joins in 35.9g pure water, and mix and blend 30 minutes, obtains mixed liquor;
(2) get the activated carbon supported Mn oxide of formula ratio, 5,5-methylimidazole alkane-2,4-diketone, 1-(2-hydroxyethyl)-2-imidazolidinone join in 40g pure water, stir, obtain mixed liquor;
(3) mixed liquor of step (2) gained is joined in the mixed liquor of step (1) gained, stir 30 minutes, get product.
Comparative example 2
According to the method described in embodiment 3, activated carbon supported Mn oxide 8g and absorbent charcoal loading titanium dioxide 8g is replaced with absorbent charcoal loading titanium dioxide 16g.
Activated carbon supported formaldehyde scavenger preparation process is as follows:
(1) get the absorbent charcoal loading titanium dioxide of formula ratio, nano-silver colloid joins in 35.9g pure water, mix and blend 30 minutes, obtains mixed liquor;
(2) get the 2-imidazolidinone of formula ratio, 1-(2-hydroxyethyl)-2-imidazolidinone joins in 40g pure water, stirs, obtain mixed liquor;
(3) mixed liquor of step (2) gained is joined in the mixed liquor of step (1) gained, stir 30 minutes, get product.
Comparative example 3
According to the method described in embodiment 3, be placed in parallel in HEPA filter by polyfluortetraethylefilm film coated polyester non-woven fabric, HEPA screen pack, activated carbon supported formaldehyde scavenger screen pack, each layer of polyfluortetraethylefilm film coated polyester non-woven fabric from windward end in turn to leeward end, the vertical range between often two-layer is 0.5mm.
Comparative example 4
According to the method described in embodiment 3, be placed in parallel in HEPA filter by polyfluortetraethylefilm film coated polyester non-woven fabric, activated carbon supported formaldehyde scavenger screen pack, each layer of HEPA screen pack from windward end in turn to leeward end, the vertical range between often two-layer is 0.5mm.
Comparative example 5
According to the method described in embodiment 3, be placed in parallel in HEPA filter by polyfluortetraethylefilm film coated polyester non-woven fabric, HEPA screen pack, each layer of polyfluortetraethylefilm film coated polyester non-woven fabric from windward end in turn to leeward end, the vertical range between often two-layer is 0.5mm.
Test case 1
After starting HEPA filter 2h, the performance of the HEPA filter MULTILAYER COMPOSITE screen pack of embodiment 1 ~ 3 and comparative example 1-4 is tested.The air that test uses is the air containing PM2.5 and formaldehyde, and the content of PM2.5 is 0.3mg/m
3, the content of formaldehyde is 2mg/m
3, test result is in table 1.
Table 1 test case 1 result
| PM2.5 filter efficiency/% | Formaldehyde filter efficiency/% | |
| Embodiment 1 | 99.991 | 96.7 |
| Embodiment 2 | 99.990 | 96.1 |
| Embodiment 3 | 99.994 | 97.8 |
| Comparative example 1 | 99.981 | 95.8 |
| Comparative example 2 | 99.979 | 95.0 |
| Comparative example 3 | 99.989 | 97.1 |
| Comparative example 4 | 99.981 | 96.9 |
| Comparative example 5 | 99.975 | 10.2 |
As seen from the data in Table 1, the use polyfluortetraethylefilm film coated polyester non-woven fabric that comparative example 5 is simple and HEPA screen pack, the filtration of PARA FORMALDEHYDE PRILLS(91,95) does not have effect substantially.Invention increases activated carbon supported formaldehyde scavenger screen pack, the elimination effect of PARA FORMALDEHYDE PRILLS(91,95) is remarkable, especially embodiment 3 employs 5,5-methylimidazole alkane-2,4-diketone, the composite methanal trapping agent of 1-(2-hydroxyethyl)-2-imidazolidinone, its effect be better than being used alone the two one of embodiment 1 and embodiment 2.Embodiment 3 is compared with comparative example 3, and exchanged the order of activated carbon supported formaldehyde scavenger screen pack and HEPA screen pack, the successful of embodiment 3 is better than comparative example 3.
Claims (6)
1. a HEPA filter MULTILAYER COMPOSITE screen pack, is characterized in that: comprise in turn from windward end to leeward end: polyfluortetraethylefilm film coated polyester non-woven fabric, activated carbon supported formaldehyde scavenger screen pack, HEPA screen pack, polyfluortetraethylefilm film coated polyester non-woven fabric.
2. HEPA filter MULTILAYER COMPOSITE screen pack as claimed in claim 1, it is characterized in that: described activated carbon supported formaldehyde scavenger screen pack obtains for spraying activated carbon supported formaldehyde scavenger on polyester non-woven fabric, can apply by single or double, on polyester non-woven fabric, total coating concentration is 30-70g/m
2.
3. HEPA filter MULTILAYER COMPOSITE screen pack as claimed in claim 2, is characterized in that: described activated carbon supported formaldehyde scavenger is grouped into by the one-tenth of following percentage by weight: activated carbon supported Mn oxide 8 ~ 15%, methanal trapping agent 5 ~ 8%, absorbent charcoal loading titanium dioxide 4 ~ 8%, nano-silver colloid 0.1 ~ 0.5%, surplus are pure water.
4. HEPA filter MULTILAYER COMPOSITE screen pack as claimed in claim 3, it is characterized in that: described methanal trapping agent is by 5 of 40 ~ 60wt%, the blended composition of 1-(2-hydroxyethyl)-2-imidazolidinone of 5-methylimidazole alkane-2,4-diketone and 40 ~ 60wt%.
5. HEPA filter MULTILAYER COMPOSITE screen pack as claimed in claim 3, is characterized in that: described activated carbon supported Mn oxide, immerses liquor potassic permanganate be prepared by active carbon.
6. HEPA filter MULTILAYER COMPOSITE screen pack as claimed in claim 3, is characterized in that: the preparation method of described activated carbon supported formaldehyde scavenger, comprises the steps:
(1) get the absorbent charcoal loading titanium dioxide of formula ratio, nano-silver colloid joins in pure water, mix and blend 20 ~ 40 minutes, obtains mixed liquor;
(2) activated carbon supported Mn oxide, the methanal trapping agent of getting formula ratio join in pure water, stir, obtain mixed liquor;
(3) mixed liquor of step (2) gained is joined in the mixed liquor of step (1) gained, stir 20 ~ 40 minutes, to obtain final product.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727737A (en) * | 2016-02-16 | 2016-07-06 | 上海勇意环境工程有限公司 | Catalytic effect activation method of potassium-permanganate filter screen |
| CN106178737A (en) * | 2016-08-31 | 2016-12-07 | 芜湖恒耀汽车零部件有限公司 | Vehicular air purifier activated charcoal strainer |
| CN106237853A (en) * | 2016-08-31 | 2016-12-21 | 芜湖恒耀汽车零部件有限公司 | The preparation method of the effective hyperfine HEPA filtering meshes of cleaning type automobile exhaust |
| CN106268059A (en) * | 2016-08-24 | 2017-01-04 | 苏州华泰空气过滤器有限公司 | A kind of except formaldehyde filter |
| CN106823790A (en) * | 2017-03-14 | 2017-06-13 | 广东美的环境电器制造有限公司 | A kind of compound air purification filtration and compound air purification filter core |
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| CN107569967A (en) * | 2017-08-21 | 2018-01-12 | 杭州创克洛环境科技有限公司 | It is a kind of to be used for formaldehyde adsorption and TVOC vehicle-mounted air purification piece and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203408561U (en) * | 2013-07-30 | 2014-01-29 | 河南省安克林滤业有限公司 | Flame-retardant washable nano-photocatalyst-activated carbon fiber membrane-coated filtering material |
| CN203458906U (en) * | 2013-06-14 | 2014-03-05 | 东莞市亿茂滤材有限公司 | Composite non-woven fabric for air purifier |
| CN203694776U (en) * | 2013-10-24 | 2014-07-09 | 唐海平 | Indoor air purifier |
| CN204006370U (en) * | 2014-06-17 | 2014-12-10 | 深圳中元宏康科技有限公司 | A kind of new and effective indoor air auto-purifying device |
| CN104492164A (en) * | 2014-12-19 | 2015-04-08 | 北汽银翔汽车有限公司 | Automotive air conditioning nano silver filter screen |
-
2015
- 2015-06-18 CN CN201510341691.6A patent/CN104984600B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203458906U (en) * | 2013-06-14 | 2014-03-05 | 东莞市亿茂滤材有限公司 | Composite non-woven fabric for air purifier |
| CN203408561U (en) * | 2013-07-30 | 2014-01-29 | 河南省安克林滤业有限公司 | Flame-retardant washable nano-photocatalyst-activated carbon fiber membrane-coated filtering material |
| CN203694776U (en) * | 2013-10-24 | 2014-07-09 | 唐海平 | Indoor air purifier |
| CN204006370U (en) * | 2014-06-17 | 2014-12-10 | 深圳中元宏康科技有限公司 | A kind of new and effective indoor air auto-purifying device |
| CN104492164A (en) * | 2014-12-19 | 2015-04-08 | 北汽银翔汽车有限公司 | Automotive air conditioning nano silver filter screen |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105727737A (en) * | 2016-02-16 | 2016-07-06 | 上海勇意环境工程有限公司 | Catalytic effect activation method of potassium-permanganate filter screen |
| CN106268059A (en) * | 2016-08-24 | 2017-01-04 | 苏州华泰空气过滤器有限公司 | A kind of except formaldehyde filter |
| CN106178737A (en) * | 2016-08-31 | 2016-12-07 | 芜湖恒耀汽车零部件有限公司 | Vehicular air purifier activated charcoal strainer |
| CN106237853A (en) * | 2016-08-31 | 2016-12-21 | 芜湖恒耀汽车零部件有限公司 | The preparation method of the effective hyperfine HEPA filtering meshes of cleaning type automobile exhaust |
| CN106823790A (en) * | 2017-03-14 | 2017-06-13 | 广东美的环境电器制造有限公司 | A kind of compound air purification filtration and compound air purification filter core |
| CN106861288A (en) * | 2017-03-14 | 2017-06-20 | 广东美的环境电器制造有限公司 | A kind of compound air purification filtration and compound air purification filter core |
| CN107569967A (en) * | 2017-08-21 | 2018-01-12 | 杭州创克洛环境科技有限公司 | It is a kind of to be used for formaldehyde adsorption and TVOC vehicle-mounted air purification piece and preparation method thereof |
| CN107569967B (en) * | 2017-08-21 | 2019-10-29 | 杭州创克洛环境科技有限公司 | It is a kind of for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC and preparation method thereof |
| CN109321068A (en) * | 2018-10-19 | 2019-02-12 | 华夏创美(北京）科技有限公司 | A kind of preparation method for the preparation removing interior decoration peculiar smell |
| CN117619053A (en) * | 2023-12-06 | 2024-03-01 | 赫为科技有限公司 | Manufacturing method of composite HEPA filter for removing formaldehyde |
| CN117619053B (en) * | 2023-12-06 | 2024-06-04 | 赫为科技有限公司 | Manufacturing method of composite HEPA filter for removing formaldehyde |
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