200539900 九、發明說明： 【發明所屬之技術領域】 本發明是關於一種捕集臭氣等之有害氣體並將該等予 以無害化的技術，尤其是關於使用光觸媒而進行的無害化技 術。 【先前技術】 在以氧化鈦爲代表的光觸媒上，照射具有該光觸媒所持 有的譜帶能隙（bandgap)以上之能量的光之時，在光觸媒內部 ® 產生電洞及電子。依此方式產生的電洞及電子在光觸媒表面 上擴散，而與吸住於光觸媒表面上的物質，及存在於光觸媒 表面附近的物質反應。利用此種光觸媒的性質之空氣淨化裝 置等，已多數被製品化，並且專利申請亦多數被提出。而， 在光觸媒之中，由於氧化力之強度、化學穩定性優異等之理 由，仍以氧化鈦被利用最多。該氧化鈦光觸媒，吸收約400 奈米（nm)以下波長的光時，可進.行如上述之光觸媒反應。 第3圖是並用臭氧與光觸媒的空氣清淨器之平面圖。如 m — 第3圖所示，該空氣清淨器從爲被處理流體之空氣的流路之 上游朝向下游，依順序具備有：過濾器部3 1、臭氧產生部 32、光觸媒裝置33、及活性碳部34。光觸媒裝置33具有： 形成空氣的流路之殼體構件、設置於該殼體構件之內部且具 有多數個空孔之基體上塗布有光觸媒功能層之光觸媒過濾 器、及照射光觸媒過濾器之紫外線照射手段。然後，光觸媒 過濾器是配置成使被處理之空氣的全量均可通過光觸媒過 濾器而流動。 200539900 被導入該空氣清淨器中的空氣，在通過光觸媒裝置33 的殼體構件之際，藉由紫外線照射手段的光照射而活性化的 光觸媒過濾器’使含有的物質被分解。依此方式，空氣被無 害化之後可被排出（例如，參照專利文獻1)。 並且，第4圖是具備有：含有活性碳及沸石之中至少1 種的吸附劑及光觸媒倂用之脫臭過濾器的空氣清淨器之縱 剖面圖。如第4圖所示，該空氣清淨器具有··包含光觸媒的 筒狀脫臭過濾器4 1，在該脫臭過濾器4〗之上游側，配置有 ^ 靠近脫臭過濾器4 1的激勵光源42，且作成使來自激勵光源 42的光之照射位置可變化般地，將脫臭過濾器4 i轉動的構 成。依此方式，可處理分解在脫臭過濾器41全體上所吸附 的氣體。從而，可提高脫臭過濾器41之再生率，因而可使 初期的優異性能長期地持續下去（例如，參照專利文獻2)。 【專利文獻1】日本特開2000-272824號公報 【專利文獻2】日本特開2002-263175號公報 另一方面，光觸媒反應僅在光觸媒之表面，及在光觸媒 胃表面附近進行。因此，當利用光觸媒分解淨化ppm或ppb 等級之極稀薄濃度的有害氣體之情況時，有害氣體在光觸媒 表面擴散的過程，容易變成分解淨化反應之速度控制步驟。 尤其，當將對光觸媒之吸附性小的有害氣體作爲分解淨化的 對象之時，有分解淨化速度顯著地變慢之問題。 該點方面，在上述專利文獻1中，雖然揭示有與臭氧之 倂用，但是利用與臭氧之倂用並不一定可明確地提高淨化速 度。 200539900 並且，在上述專利文獻2中，雖然記載有光觸媒與含有 活性碳及沸石之中至少1種的吸附劑之倂用，但是即使使用 此種吸附劑時該吸附材到達吸附飽和之後，無法再吸附有害 物質，因此淨化作用變低，因而必須更換吸附劑。該已使用 的吸附劑是成爲一般廢棄物或產業廢棄物，因而有廢棄物增 加的問題。 【發明內容】 本發明之目的在提供一種：解決上述課題之有害物質的 # 分解除去效率高的有害物質分解技術，或者廢棄物量變少之 有害物質分解技術。 通常，在居住空間中產生異味之物質的濃度爲從ppb到 數ppm之程度，當欲將如此稀薄濃度之氣體分解之時，氣體 的分解速度是正比於氣體濃度而變大係爲已知。並且，在光 強度與分解速度的關係之中，通常從黑光或光觸媒用之冷陰 極燈發出的數mW/cm2程.度之光強度之情況時，光強度越強 分解速度越高。從這些事情，光強度及氣體濃度越強之時， ^ 分解速度越高，因而總結脫臭效果等之有害物質除去效果變 強。從而，在塗布光觸媒的陶瓷過濾器等之承載光觸媒構 件，及由光源構成的脫臭裝置等之有害物質的分解裝置之 中，含有臭氣等之有害物質的氣體，配置成從陶瓷過濾器等 之承載光觸媒構件的光源側的面流入之時，含有臭氣等之有 害物質的氣體，在氣體濃度最高的狀態下，通過光強度最高 之陶瓷過濾器等之承載光觸媒構件的面而接觸，因此反應效 率可提高。 200539900 並且，照射光觸媒上的光，並非全部被吸收到光觸媒上 而對反應貢獻，光之一部分或大部分在光觸媒層上反射，而 漏失到外部。漏失到外部的光，無法對脫臭反應有貢獻，因 此僅該部分成爲被浪費的能源。爲了儘可能減少如此的能源 浪費，必須採取使來自光源的光難以漏失到外部的構造。其 一個方法上，例如，使光源配置在2片陶瓷過濾器等之承載 光觸媒構件之間的方法。依此方式，將光源配置在2片陶瓷 過濾器等之承載光觸媒構件之間時，在一片之陶瓷過濾器等 ® 之承載光觸媒構件上反射的光，入射到另一片陶瓷過濾器等 之承載光觸媒構件上，可利用在其表面上塗布的光觸媒上進 行的光觸媒反應，因而可提高光的利用效率。 具體上，利用：將塗布光觸媒的構件之表面間配置成照 射在該表面上的光反射到另一之上述表面上，從設置於圍住 該等表面之領域上的光源，將光照射於上述光觸媒，而藉由 該光觸媒將有害物質分解的有害物質之分解方法，使照射於 塗布光觸媒的構件之表面上的光，可參與光觸媒反應，或者 — 即使反射之時，亦可照射到另一塗布光觸媒的構件之表面 上，因此可提高光能源的利用效率。 並且，利用：使塗布光觸媒的構件之表面彼此對向配 置，從設置於該等之表面間的光源，將光照射於該光觸媒， 而將有害物質分解的有害物質之分解方法，使照射於塗布光 觸媒的構件之表面上的光，可參與光觸媒反應，或者即使反 射之時，亦可照射到另一塗布光觸媒的構件之表面上，因此 可提高光能源的利用效率。 200539900 並且’利用：在塗布光觸媒的筒狀構件之內部設置光 源，從該光源將光照射於上述光觸媒，而藉由該光觸媒使害 物質分解的有害物質之分解方法，使照射於塗布光觸媒的構 件之表面上的光，可參與光觸媒反應，或者即使反射之時， 亦可照射到另一塗布光觸媒的構件之表面上，因此可提高光 能源的利用效率。 並且，利用··塗布光觸媒的構件或者筒狀構件，是爲過 濾器狀或者多孔質之可使其它氣體通過之構件的有害物質 ® 之分解方法，可使有害物質在通過過濾器狀或者多孔質之可 使其它氣體通過之構件之時被分解除去。並且，當使用多孔 質之時，構件之表面積變大，因此光觸媒的存在量亦變大， 故使有害物質之分解除去亦增大。而，過濾器狀或者多孔質 之構件以外者，只要爲可通過有害物質的話均可適用。 並且，利用··使含有有害物質的氣體，最初通過上述塗 布光觸媒的構件.或者筒狀構件之光照射強度最高的面般 地’將上述氣體導入上述塗布光觸媒的構件或者筒狀構件的 β有害物質之分解方法，可有效率地使有害物質被分解除去。 並且，利用：上述塗布光觸媒的構件或者筒狀構件，是 爲陶瓷的有害物質之分解方法，藉由上述塗布光觸媒的構件 或者筒狀構件的水洗淨，可使性能恢復，並且廢棄物量變少。 並且，藉由上述有害物質之分解方法，可實現將有害物 質分解的有害物質分解裝置。 並且，有害物質分解裝置，利用：在上述有害物質分解 裝置內之氣體的流路上設置有整流板的有害物質分解裝 200539900 置，使氣體之流通抵抗變大，即使在氣體流量少之情況，亦 可使氣體流動通過塗布光觸媒的構件全體，因此有害物質與 光觸媒之接觸效率提高，故可提高有害物質的分解除去效 【實施方式】 其次，將一面參照附圖一面詳細地說明本發明之實施形 態。 (第1實施形態） • 第1圖中是顯示第1實施形態使用的脫臭裝置之構成 圖。在第1圖中，（a)是脫臭裝置之剖面構成圖，（b)是脫臭 裝置之側面構成圖。 該脫臭裝置，是與：激勵塗布光觸媒的陶瓷過濾器與光 觸媒反應的光源組合，將光源配置於可有效地使用來自光源 的光之2片陶瓷過濾器間。並且，具有：含有臭氣的氣體最 初通過陶瓷過.濾器之光照射強度最高的面般地，使氣體導入 2片陶瓷過濾器之間後，而通過陶瓷過濾器之構造。 ^ 具體的脫臭裝置，具有：設置於脫臭裝置之下部，而導 入氣體的吸氣口 1、設置於吸氣口 1的上部而爲氣體導入的 驅動力之風扇2、在脫臭裝置內縱向平行地設置而作爲光源 使用的複數個燈3、挾持該燈3而相對向地設置之2片陶瓷 過濾器4, 5、與陶瓷過濾器4, 5相鄰的側室6, 7、與該側室 6, 7接續而將氣體導入排氣口用的側室8, 9、及與該側室8, 9接續而將氣體排出用的排氣口 1 0, 1 1。 在該脫臭裝置中，將風扇2驅動時，可從吸氣口 1將氣 -10- 200539900 體導入而到達設置有作爲光源之燈3的脫臭裝置的中央部。 然後，通過配置於燈3之兩橫向的陶瓷過濾器4, 5。在該通 過之際，陶瓷過濾器4，5表面的光照射之光觸媒與氣體接 觸，而使氣體中的臭氣成分氣體被分解。通過陶瓷過濾器4, 5而使臭氣成分被分解的氣體，經過側室6, 7而到達側室8， 9，而從排氣口 1 0，1 1被排氣。 依此方式，使氣體從燈3朝向陶瓷過濾器4，5而通過 時，臭氣成分濃度爲最高狀態的氣體，變成通過陶瓷過濾器 • 4, 5之最強光照射部分，因而可有效率地將有害物質分解除 去。並且，將光源配置於2片陶瓷過濾器4, 5之間時，照射 於一方的陶瓷過濾器，反射的光照射到另一方的陶瓷過濾器 上，因此可提高光能源的利用效率。 而，只要作爲光源的燈3可均勻的光照射到陶瓷過濾器 上的話，亦可不必縱向平行地設置，不必爲複數個，1個亦 可。 並且，雖然塗布於陶瓷過濾器的光觸媒較採用氧化鈦， ^ 但是亦可使用：氧化鋅、鈦酸緦、或鈦酸鋇、或者該等之光 觸媒適宜地組合的化合物等，而具有光觸媒功能者。 並且，陶瓷過濾器並不限定於2片，只要位置關係可使 照射的光反射到另外的陶瓷過濾器上的話，多少片亦無妨。 其它方面，亦可將光源的燈3設置於圓筒狀等之筒狀的陶瓷 過濾器之內部。 (第2實施形態） 第2圖中是顯示第2實施形態使用的脫臭裝置之構成 -11- 200539900 圖。在第2圖中’（a)是脫臭裝置之剖面構成圖，（b)是脫臭 裝置之側面構成圖。 該脫臭裝置是在上述第1實施形態的脫臭裝置中，將複 數片的整流板1 2安裝於側室6，7中，而對朝向上方移動的 氣體成爲垂直。 安裝該整流板1 2之時，使氣體的流通阻力變大，在氣 體流量少的情況亦可使氣體均勻地流入側室6, 7中。利用此 作用可使氣體流動通過陶瓷過濾器4, 5全體，而使臭氣成分 Φ 氣體與光觸媒的接觸效率變高，因而可提高脫臭效果。 而，整流板1 2，只要可獲得上述效果者的話，亦可不必 對朝向上方移動的氣體成爲垂直，各側室6，7中均爲1片亦 可° 【圖式簡單說明】 第1圖是脫臭裝置的構成圖。 第.2圖是脫臭裝置的構成圖。 第3圖是利用臭氧及光觸媒倂用的空氣清淨器之平面 馨圖。 第4圖是倂用含有活性碳、沸石之至少1種的吸附劑及 光觸媒的空氣清淨裝置之縱剖面圖。 【元件符號說明】 1 吸氣口 2 風扇 3 燈 4, 5 陶瓷過濾器 -12- 200539900200539900 IX. Description of the invention: [Technical field to which the invention belongs] The present invention relates to a technology for capturing harmful gases such as odors and detoxifying them, especially a technology for detoxifying using a photocatalyst. [Prior art] When a photocatalyst typified by titanium oxide is irradiated with light having an energy equal to or higher than a bandgap held by the photocatalyst, holes and electrons are generated inside the photocatalyst ®. The holes and electrons generated in this manner diffuse on the surface of the photocatalyst, and react with substances adsorbed on the surface of the photocatalyst and substances existing near the surface of the photocatalyst. Many air purification devices and the like utilizing the properties of such photocatalysts have been manufactured, and many patent applications have been filed. Among the photocatalysts, titanium oxide is still the most used because of its oxidizing strength and excellent chemical stability. When the titanium oxide photocatalyst absorbs light having a wavelength of about 400 nanometers (nm) or less, it can perform the photocatalyst reaction as described above. Fig. 3 is a plan view of an air cleaner using ozone and a photocatalyst together. As shown in Fig. 3, the air cleaner is provided with a filter unit 31, an ozone generating unit 32, a photocatalyst device 33, and an active unit in order from the upstream to the downstream of the flow path of the air to be treated fluid. Carbon section 34. The photocatalyst device 33 includes a housing member forming a flow path of the air, a photocatalyst filter provided with a photocatalyst functional layer on a substrate provided inside the housing member and having a plurality of voids, and ultraviolet irradiation for irradiating the photocatalyst filter. means. Then, the photocatalyst filter is configured so that the entire amount of the treated air can flow through the photocatalyst filter. 200539900 When the air introduced into the air cleaner passes through the housing member of the photocatalyst device 33, the photocatalyst filter 'activated by light irradiation by ultraviolet irradiation means decomposes the contained substances. In this way, the air can be discharged after being harmless (for example, refer to Patent Document 1). Fig. 4 is a longitudinal sectional view of an air cleaner including a deodorizing filter for an adsorbent containing at least one of activated carbon and zeolite and a photocatalyst. As shown in FIG. 4, the air cleaner has a cylindrical deodorizing filter 41 including a photocatalyst. An upstream side of the deodorizing filter 4 is provided with an excitation close to the deodorizing filter 41. The light source 42 is configured to rotate the deodorizing filter 4 i so that the irradiation position of the light from the excitation light source 42 can be changed. In this way, the gas decomposed on the entire deodorizing filter 41 can be processed. Therefore, since the regeneration rate of the deodorizing filter 41 can be increased, the excellent performance at the initial stage can be continued for a long period of time (for example, refer to Patent Document 2). [Patent Document 1] Japanese Patent Laid-Open No. 2000-272824 [Patent Document 2] Japanese Patent Laid-Open No. 2002-263175 On the other hand, the photocatalyst reaction is performed only on the surface of the photocatalyst and near the surface of the stomach of the photocatalyst. Therefore, when the photocatalyst is used to decompose and purify harmful gases with extremely thin concentrations of ppm or ppb level, the process of diffusing harmful gases on the surface of the photocatalyst is likely to become a speed control step of the decomposition and purification reaction. In particular, when a harmful gas having a low adsorption to a photocatalyst is used as a target for decomposition and purification, there is a problem that the decomposition and purification rate becomes significantly slower. In this regard, in the above-mentioned Patent Document 1, although the use with ozone is disclosed, the use with ozone does not necessarily increase the purification rate clearly. 200539900 Furthermore, in the above-mentioned Patent Document 2, the use of a photocatalyst and an adsorbent containing at least one of activated carbon and zeolite is described. However, even when such an adsorbent is used, the adsorbent cannot reach the saturation after adsorption. The harmful substance is adsorbed, so the purification effect becomes low, so the adsorbent must be replaced. This used adsorbent becomes a general waste or an industrial waste, so there is a problem of increasing waste. [Summary of the Invention] The object of the present invention is to provide a technique for decomposing hazardous substances with high #decomposition and removal efficiency, or a technique for decomposing hazardous substances with a reduced amount of waste. Generally, the concentration of odor-generating substances in living spaces ranges from ppb to several ppm. When it is intended to decompose such a thin concentration of gas, it is known that the decomposition rate of the gas is proportional to the concentration of the gas and becomes large. In addition, in the relationship between the light intensity and the decomposition rate, light intensity of several mW / cm2 range.degrees from a cold cathode lamp for black light or a photocatalyst is usually used. The stronger the light intensity, the higher the decomposition rate. From these things, the stronger the light intensity and the gas concentration, the higher the decomposition rate. Therefore, the harmful substance removal effect such as the deodorizing effect becomes stronger. Therefore, in a photocatalyst-coated ceramic filter or the like, a photocatalyst-carrying member, and a deodorizing device such as a deodorizing device composed of a light source, a gas containing harmful substances such as odor is disposed from the ceramic filter or the like. When the surface on the light source side carrying the photocatalyst member flows in, the gas containing harmful substances such as odor is in contact with the surface of the photocatalyst member through the ceramic filter or the like having the highest light intensity at the highest gas concentration. The reaction efficiency can be improved. 200539900 In addition, not all of the light irradiated on the photocatalyst is absorbed into the photocatalyst and contributes to the reaction. Some or most of the light is reflected on the photocatalyst layer and leaks to the outside. The light that is leaked to the outside cannot contribute to the deodorization reaction, so only this portion becomes a waste of energy. In order to minimize such a waste of energy, it is necessary to adopt a structure that makes it difficult for light from a light source to leak to the outside. In one method, for example, a method in which a light source is disposed between two ceramic filters or the like supporting a photocatalyst member. In this way, when a light source is arranged between two ceramic filter-carrying photocatalyst members, the light reflected on one ceramic filter-carrying photocatalyst member enters another ceramic filter-carrying photocatalyst. Since the photocatalyst reaction performed on the photocatalyst coated on the surface can be used on the member, the utilization efficiency of light can be improved. Specifically, by using a method in which the photocatalyst-coated member is disposed between the surfaces so that the light irradiated on the surface is reflected on the other surface, and the light is irradiated onto the surface from a light source provided in a region surrounding the surfaces. Photocatalyst, and the method of decomposing the harmful substance by the photocatalyst, so that the light irradiated on the surface of the member coated with the photocatalyst can participate in the photocatalyst reaction, or-even when it is reflected, it can be irradiated to another coating The surface of the photocatalyst member can improve the utilization efficiency of light energy. In addition, by using a method of dissolving a harmful substance, the surfaces of the members coated with the photocatalyst are arranged to face each other, and a light source provided between the surfaces is irradiated with light to the photocatalyst to decompose the harmful substance, thereby irradiating the coating. The light on the surface of the photocatalyst member can participate in the photocatalyst reaction, or even when it is reflected, it can be irradiated on the surface of another photocatalyst-coated member, so the utilization efficiency of light energy can be improved. 200539900 And 'utilization: a light source is provided inside the cylindrical member coated with a photocatalyst, and the light is irradiated onto the photocatalyst from the light source, and the photocatalyst-coated member is irradiated with the photocatalyst-degrading method of the harmful substance by the photocatalyst. The light on the surface can participate in the photocatalyst reaction, or even when it is reflected, it can be irradiated on the surface of another photocatalyst-coated member, so the utilization efficiency of light energy can be improved. In addition, the use of photocatalyst-coated members or cylindrical members is a method of decomposing hazardous substances ® that are filter-like or porous and that can pass other gases, allowing harmful substances to pass through the filter or porous Components that allow other gases to pass through are decomposed and removed. In addition, when a porous material is used, the surface area of the member becomes large, and therefore, the amount of the photocatalyst is also increased, so that decomposition and removal of harmful substances are also increased. In addition, any material other than a filter-like or porous member is applicable as long as it can pass harmful substances. In addition, the gas containing a harmful substance is first passed through the above-mentioned photocatalyst-coated member or the cylindrical member with the highest intensity of light irradiation, and the gas introduced into the photocatalyst-coated member or the cylindrical member is harmful to β. Substance decomposition method can effectively decompose and remove harmful substances. In addition, the use of the photocatalyst-coated member or the cylindrical member is a method for decomposing harmful substances in ceramics. By washing the photocatalyst-coated member or the cylindrical member with water, performance can be restored and the amount of waste can be reduced. . In addition, by the above-mentioned method for decomposing harmful substances, a harmful substance decomposing device capable of decomposing harmful substances can be realized. In addition, the harmful substance decomposition device utilizes a 200539900 harmful substance decomposition device provided with a rectifier plate on a gas flow path in the above-mentioned harmful substance decomposition device to increase the resistance of gas circulation, even when the gas flow rate is small. Since the gas can flow through the entire member coated with the photocatalyst, the contact efficiency between the harmful substance and the photocatalyst is improved, and the decomposition and removal efficiency of the harmful substance can be improved. [Embodiment] Next, an embodiment of the present invention will be described in detail with reference to the drawings. . (First Embodiment) • The first figure is a diagram showing the configuration of a deodorizing device used in the first embodiment. In Fig. 1, (a) is a sectional configuration diagram of the deodorizing device, and (b) is a side configuration diagram of the deodorizing device. This deodorizing device is a combination of a ceramic filter for energizing a photocatalyst and a light source that reacts with the photocatalyst, and the light source is disposed between two ceramic filters that can efficiently use light from the light source. In addition, the odor-containing gas first passes through the ceramic. The filter has the highest intensity of light irradiation. The gas is introduced between two ceramic filters and then passes through the ceramic filter. ^ A specific deodorizing device includes: a suction port 1 provided at a lower portion of the deodorizing device to introduce gas, a fan 2 provided at an upper portion of the suction port 1 and driving force for gas introduction, and 2 inside the deodorizing device A plurality of lamps 3 arranged in parallel in the longitudinal direction and used as a light source, two ceramic filters 4, 5 holding the lamp 3 and oppositely arranged, side chambers 6, 7, adjacent to the ceramic filters 4, 5, and The side chambers 6, 7 are connected to the side chambers 8, 9 for introducing gas to the exhaust port, and the side chambers 8, 9 are connected to the exhaust port 10, 11 for exhausting the gas. In this deodorizing device, when the fan 2 is driven, an air -10- 200539900 body can be introduced from the air inlet 1 to reach the central portion of the deodorizing device provided with the lamp 3 as a light source. Then, the ceramic filters 4 and 5 passing through the two lateral sides of the lamp 3 are passed. During this passage, the photocatalyst irradiated with light from the surfaces of the ceramic filters 4, 5 is in contact with the gas, and the odorous component gas in the gas is decomposed. The gas that has been decomposed by the ceramic filters 4 and 5 passes through the side chambers 6 and 7 to the side chambers 8 and 9 and is exhausted from the exhaust ports 10 and 11. In this way, when the gas is passed from the lamp 3 toward the ceramic filters 4, 5, the gas with the highest concentration of odorous components passes through the strongest light irradiation portion of the ceramic filter 4, 5, and thus can be efficiently Decompose and remove harmful substances. In addition, when the light source is arranged between two ceramic filters 4, 5, one ceramic filter is irradiated, and the reflected light is irradiated to the other ceramic filter, thereby improving the utilization efficiency of light energy. In addition, as long as the lamp 3 as a light source can irradiate the ceramic filter with uniform light, it is not necessary to be arranged in parallel in the vertical direction, and it is not necessary to have a plurality of, or one. In addition, although the photocatalyst applied to the ceramic filter is made of titanium oxide, ^ it can also be used: zinc oxide, hafnium titanate, barium titanate, or a suitable combination of these photocatalysts, etc., and have photocatalyst function . In addition, the ceramic filter is not limited to two pieces, and as long as the positional relationship allows the irradiated light to be reflected on another ceramic filter, it may be any number. Alternatively, the lamp 3 of the light source may be provided inside a cylindrical ceramic filter such as a cylindrical one. (Second Embodiment) Fig. 2 is a diagram showing the structure of a deodorizing device used in the second embodiment. In Fig. 2, '(a) is a sectional configuration view of the deodorizing device, and (b) is a lateral configuration view of the deodorizing device. This deodorizing device is a deodorizing device according to the first embodiment described above, in which a plurality of rectifying plates 12 are mounted in the side chambers 6, 7 so as to be vertical to a gas moving upward. When the rectifying plate 12 is mounted, the resistance of the gas flow is increased, and the gas can be evenly flowed into the side chambers 6, 7 when the gas flow rate is small. By this action, the gas can flow through the entire ceramic filters 4, 5 and the contact efficiency of the odor gas Φ gas with the photocatalyst can be increased, thereby improving the deodorizing effect. In addition, the rectifying plate 12 need not be vertical to the gas moving upward as long as the above effect can be obtained, and one of each of the side chambers 6 and 7 may be used. [Simplified description of the drawing] Configuration diagram of the deodorizing device. Fig. 2 is a block diagram of a deodorizing device. Fig. 3 is a plan view of an air cleaner using ozone and a photocatalyst. Fig. 4 is a longitudinal cross-sectional view of an air cleaning device using an adsorbent containing at least one of activated carbon and zeolite and a photocatalyst. [Description of component symbols] 1 suction port 2 fan 3 lamp 4, 5 ceramic filter -12- 200539900
6，7 側室 8,9 側室 10, 11 排氣口 12 整流板6, 7 side chambers 8, 9 side chambers 10, 11 Exhaust port 12 Rectifier