CN110841472A - Air conditioner filter screen with formaldehyde removing function, manufacturing method and air conditioner - Google Patents
Air conditioner filter screen with formaldehyde removing function, manufacturing method and air conditioner Download PDFInfo
- Publication number
- CN110841472A CN110841472A CN201911075989.1A CN201911075989A CN110841472A CN 110841472 A CN110841472 A CN 110841472A CN 201911075989 A CN201911075989 A CN 201911075989A CN 110841472 A CN110841472 A CN 110841472A
- Authority
- CN
- China
- Prior art keywords
- filter screen
- base layer
- photocatalyst
- air conditioner
- breathable base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
Abstract
The invention discloses an air conditioner filter screen with a formaldehyde removing function, a manufacturing method thereof and an air conditioner. An air conditioner filter screen with a formaldehyde removing function comprises a filter screen frame with a rectangular structure and filter screen wires arranged in the filter screen frame. Still be provided with ventilative basic unit on the filter screen frame, ventilative basic unit can dismantle through fixing device and be fixed in the filter screen frame, covers on filtering the silk screen surface, and the surface of ventilative basic unit is provided with no photocatalyst layer. The manufacturing method of the air conditioner filter screen with the formaldehyde removing function comprises the following steps: s1, preparing a breathable base layer; s2, preparing a formaldehyde removing solution; s3, generating a photocatalyst-free layer; s4, cutting; and S5, configuring a fixing device. An air conditioner, the air outlet is provided with the air conditioner filter screen that has except that formaldehyde function, and air outlet department still is provided with the monitoring sensor of monitoring formaldehyde content. The invention can purify the formaldehyde in the room with lasting and high efficiency, and has simple structure and convenient replacement.
Description
Technical Field
The invention relates to the field of air conditioner filtration, in particular to an air conditioner filter screen with a formaldehyde removing function, a manufacturing method and an air conditioner.
Background
With the continuous development of the real estate industry, newly built or newly decorated houses often volatilize organic toxic gases represented by formaldehyde due to various decorative coatings; similarly, the newly purchased furniture can volatilize a lot of toxic and harmful gases such as formaldehyde, and the toxic and harmful gases seriously affect the quality of life of the masses and threaten life health.
In the prior art, the problem of air pollution of a closed space caused by decoration or other reasons is mainly solved by means of using an air purifier, windowing, ventilation and the like. Although the purifier can purify formaldehyde to a certain extent, the purifier needs additional equipment, occupies indoor space and needs additional energy support. The formaldehyde purification function is matched with indoor ventilation devices such as an air conditioner and the like for use, the method is a novel method for purifying indoor air, not only is the function of the air conditioner increased, but also the space and energy are saved compared with the method for singly using the air purifier. Some air conditioners that have in market and remove the formaldehyde function need additionally to install formaldehyde purification module, to the current empty regulation in family, the installation is inconvenient, is unfavorable for reforming transform.
Disclosure of Invention
In order to overcome the defects, the invention aims to provide an air conditioner filter screen with a formaldehyde removing function, a manufacturing method and an air conditioner.
In order to achieve the above purposes, the invention adopts the technical scheme that: air conditioner filter screen with remove formaldehyde function, filter screen frame including the rectangle structure is in with the setting filter screen silk in the filter screen frame, its characterized in that: the filter screen frame is also provided with a breathable base layer, the breathable base layer can be detachably fixed on the filter screen frame through a fixing device and covers the surface of the filter screen, and the surface of the breathable base layer is provided with a photocatalyst-free layer.
The invention adds the breathable base layer which is provided with the photocatalyst-free layer, can efficiently remove indoor formaldehyde, and adopts materials which are harmless to the environment and human body. And ventilative basic unit passes through fixing device to be fixed at the filter screen frame, covers the filter screen silk, reduces the washing number of times of original filter screen silk, only needs to wash and changes ventilative basic unit, convenient easy operation.
Preferably, the air-permeable substrate is one of a non-woven fabric fiber mesh, a polyester fiber mesh or a nylon fiber mesh. The flexible material is convenient to fold.
Preferably, the thickness of the breathable base layer is 1-5 mm, and the aperture of the pore is 50-80 meshes. Good air permeability and no interference to air exchange of the air conditioner.
Preferably, the fixing devices are four elastic bands fixed at four corners of the breathable base layer, and the four corners of the filter net rack are sleeved with the elastic bands. The elastic belt is simple in structure and convenient to fix.
Preferably, the fixing device is a magic tape fixed on the breathable base layer, and the filter screen frame is provided with an adhesive layer matched with the magic tape.
The invention also comprises a manufacturing method of any air conditioner filter screen with the formaldehyde removing function, which is characterized in that:
s1, preparing a breathable base layer, selecting the breathable base layer, and performing ultraviolet disinfection for later use;
s2, preparing a formaldehyde-removing solution, weighing a photocatalyst-free solution, and adding water to form the photocatalyst-free solution;
s3, generating a photocatalyst-free layer, spraying the photocatalyst-free solution in the S2 on the breathable base layer in the S1, and drying at the temperature of 50-60 ℃ for 0.5-1.5 h; and secondly, spraying the photocatalyst-free solvent in the S2 on the surface of the breathable base layer for secondary drying at the drying temperature of 40-50 ℃ for 2 hours until the water content is not higher than 20%.
S4, cutting, namely cutting the breathable base layer containing the photocatalyst-free layer prepared in the step S3 according to the size of the filter screen frame;
and S5, configuring a fixing device and assembling, wherein the fixing device is configured on the breathable base layer cut in the step S4, and the breathable base layer containing the photocatalyst-free layer is fixed on the filter screen frame by the fixing device and covers the surface of the filter screen.
The manufacturing method of the air conditioner filter screen with the formaldehyde removing function has the advantages of simple steps and easy operation, and the prepared air conditioner filter screen has low use cost and the formaldehyde removing function.
Preferably, the mass ratio of the photocatalyst-free material to the water in the step S2 is 2: 10, the photocatalyst-free solution is prepared by placing photocatalyst-free solution in an ultrasonic cleaning instrument, ultrasonically treating for 15-30min to disperse, and then placing in a constant temperature water bath kettle, and stirring uniformly, wherein the water bath temperature is 20-30 ℃.
Preferably, the spraying amount of the photocatalyst-free solution in S3 is 50-100g/m calculated by the surface area of the photocatalyst-free solution and the surface area of the breathable base layer2。
The invention also discloses an air conditioner, which comprises an air outlet and is characterized in that: the air outlet is provided with any one of the air conditioner filter screen with the formaldehyde removing function, and the air outlet is also provided with a monitoring sensor for monitoring the formaldehyde content.
The air conditioner has the function of removing formaldehyde and can monitor the content of indoor annular formaldehyde in real time.
Drawings
FIG. 1 is a schematic structural view of an air conditioner filter screen with a formaldehyde removing function according to the present embodiment;
fig. 2 is a cross-sectional view of the air-permeable substrate with no photocatalyst layer in this embodiment.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1-2, the air conditioner filter screen with a formaldehyde removing function in the embodiment includes a filter screen frame 1 with a rectangular structure and filter screen wires arranged in the filter screen frame 1, wherein the filter screen frame 1 is further provided with a breathable base layer 2, and the breathable base layer 2 is one of a non-woven fabric fiber net, a polyester fiber net or a nylon fiber net. The flexible material is convenient to fold. The thickness of the breathable base layer 2 is 1-5 mm, and the aperture of the pore is 50-80 meshes. Good air permeability and no interference to air exchange of the air conditioner. Ventilative basic unit 2 can dismantle through fixing device 3 and be fixed in filter screen frame 1, covers on filtering the silk screen surface, and ventilative basic unit 2's surface is provided with no photocatalyst layer 4.
The fixing devices 3 are four elastic bands fixed at four corners of the breathable base layer 2, and the four corners of the filter net rack 1 are sleeved with the elastic bands. The elastic belt is simple in structure and convenient to fix. Fixing device 3 also can be for fixing the magic subsides on ventilative basic unit, be provided with on the filter screen frame with the magic tie coat of pasting the matching, will breathe freely the basic unit and directly paste on filter screen frame 1 surface, the convenient change.
The breathable base layer 2 is additionally arranged, the photocatalyst-free layer 4 is arranged on the breathable base layer 2, indoor formaldehyde can be efficiently removed, and the adopted materials are harmless to the environment and human bodies. And ventilative basic unit 2 passes through fixing device 3 to be fixed at filter screen frame 1, covers the filter screen silk, reduces the washing number of times of original filter screen silk, only needs to wash and changes ventilative basic unit 2, convenient easy operation. In order to ensure the indoor formaldehyde removal efficiency, the breathable base layer with the photocatalyst-free layer 4 is replaced every three months.
The manufacturing method of the air conditioner filter screen with the formaldehyde removing function is characterized in that:
preparing a breathable base layer, selecting the breathable base layer, performing ultraviolet disinfection for later use, wherein one of a non-woven fabric fiber net, a polyester fiber net or a nylon fiber net of the breathable base layer can be directly purchased from the market, and irradiating the breathable base layer for one hour under an ultraviolet lamp for sterilization.
Step two, preparing formaldehyde-removing solution, weighing the photocatalyst-free solution, adding water to form the photocatalyst-free solution, wherein the photocatalyst-free solution can be directly purchased in the market. The mass ratio of the photocatalyst-free material to the water is 2: 10, the photocatalyst-free solution is prepared by placing photocatalyst-free solution in an ultrasonic cleaning instrument, ultrasonically treating for 15-30min to disperse, and then placing the solution in a constant-temperature water bath kettle, and uniformly stirring, wherein the water bath temperature is 20-30 ℃.
And step three, generating a photocatalyst-free layer, and spraying the photocatalyst-free solution in the step two on the breathable base layer in the step one. Drying at 50-60 deg.C for 0.5-1.5 h; and secondly, spraying the photocatalyst-free solvent in the S2 on the surface of the breathable base layer for secondary drying at the drying temperature of 40-50 ℃ for 2 hours until the water content is not higher than 20%.
The spraying amount of the photocatalyst-free solution is calculated by the surface area of the photocatalyst-free solution and the surface area of the breathable base layer, and is 50-100g/m2。
And step four, cutting, namely cutting the breathable base layer containing the photocatalyst-free layer prepared in the step three into a proper size according to the size of the filter screen frame.
Step five, configuring a fixing device, and configuring the fixing device on the breathable base layer cut in the step 4. The fixing device is four elastic bands which are fixed at four corners of the breathable base layer by needle lines, and the four corners of the filter net rack are sleeved with the elastic bands. The fixing device can also be a magic tape fixed on the breathable base layer for the needle thread, and a bonding layer matched with the magic tape is fixed on the filter screen frame through a double-sided adhesive tape. The breathable base layer containing the photocatalyst-free layer is fixed on the filter screen frame through the fixing device and covers the surface of the filter screen wire, and formaldehyde and partial dust passing through the filter screen wire are filtered.
The manufacturing method of the air conditioner filter screen with the formaldehyde removing function has the advantages of simple steps and easy operation, and the prepared air conditioner filter screen has low use cost and the formaldehyde removing function.
The air conditioner comprises an air outlet, wherein an air conditioner filter screen with a formaldehyde removing function is arranged at the air outlet, and a monitoring sensor for monitoring the formaldehyde content is further arranged at the air outlet. The air conditioner has the function of removing formaldehyde and can monitor the content of indoor annular formaldehyde in real time.
The following is a set of comparison of test data for a room using the air conditioner filter screen with formaldehyde removal function of the present invention, as shown in table 1:
sampling overview:
the air conditioner normally operates under the ventilation function in the 24h sampling interval of the two times of sampling
| Sampling point location | Detecting items | Unit of | Initial state | After 24 hours | Formaldehyde |
| Room | |||||
| 1 fixed point | Formaldehyde (I) | mg/s3 | 0.983 | 0.082 | 91.7 |
| Room | |||||
| 2 fixed point | Formaldehyde (I) | mg/s3 | 0.095 | 0.067 | 29.5％ |
The room 1 is a newly decorated room, the content of formaldehyde exceeds the standard, the formaldehyde removal rate reaches 91.7 percent, the room 2 is a room which is used for more than five years, the formaldehyde removal rate is qualified, and the formaldehyde removal rate also reaches 29.5 percent.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. Air conditioner filter screen with remove formaldehyde function, filter screen frame including the rectangle structure is in with the setting filter screen silk in the filter screen frame, its characterized in that: the filter screen frame is provided with a breathable base layer, the breathable base layer can be detachably fixed on the filter screen frame through a fixing device, the breathable base layer covers the surface of the filter screen, and the surface of the breathable base layer is provided with a photocatalyst-free layer.
2. The filter screen for air conditioners as claimed in claim 1, which has a formaldehyde removing function, is characterized in that: . The breathable base layer is one of a non-woven fabric fiber net, a polyester fiber net or a nylon fiber net.
3. The filter screen for air conditioners as claimed in claim 2, wherein: the thickness of the breathable base layer is 1-5 mm, and the aperture of the pore is 50-80 meshes.
4. The filter screen for air conditioners as claimed in claim 1, which has a formaldehyde removing function, is characterized in that: the fixing device is four elastic bands fixed at four corners of the breathable base layer, and the four corners of the filter net rack are sleeved with the elastic bands.
5. The filter screen for air conditioners as claimed in claim 1, which has a formaldehyde removing function, is characterized in that: the fixing device can also be a magic tape fixed on the breathable base layer, and a bonding layer matched with the magic tape is arranged on the filter screen frame.
6. The method for manufacturing the filter screen for air conditioner with formaldehyde removing function as claimed in any one of claims 1 to 5, wherein:
s1, preparing a breathable base layer, selecting the breathable base layer, and performing ultraviolet disinfection for later use;
s2, preparing a formaldehyde-removing solution, weighing a photocatalyst-free solution, and adding water to form the photocatalyst-free solution;
s3, generating a photocatalyst-free layer, spraying the photocatalyst-free solution in the S2 on the breathable base layer in the S1, and drying at the temperature of 50-60 ℃ for 0.5-1.5 h; secondly spraying the photocatalyst-free solvent in the S2 on the surface of the breathable base layer, and drying for 2 hours at the drying temperature of 40-50 ℃ until the water content is not higher than 20%;
s4, cutting, namely cutting the breathable base layer containing the photocatalyst-free layer prepared in the step S3 according to the size of the filter screen frame;
and S5, configuring a fixing device and assembling, wherein the fixing device is configured on the breathable base layer cut in the step S4, and the breathable base layer containing the photocatalyst-free layer is fixed on the filter screen frame by the fixing device and covers the surface of the filter screen.
7. The manufacturing method of the air conditioner filter screen with the formaldehyde removing function according to claim 6, characterized in that: the mass ratio of the photocatalyst-free water to the water in the S2 is 2: 10, the photocatalyst-free solution is prepared by placing photocatalyst-free solution in an ultrasonic cleaning instrument, ultrasonically treating for 15-30min to disperse, and then placing in a constant temperature water bath kettle, and stirring uniformly, wherein the water bath temperature is 20-30 ℃.
8. The manufacturing method of the air conditioner filter screen with the formaldehyde removing function according to claim 6 is characterized in that: the spraying amount of the photocatalyst-free solution in the S3 is calculated by the surface areas of the photocatalyst-free solution and the breathable base layer, and is 50-100g/m2。
9. The utility model provides an air conditioner, includes the air outlet, its characterized in that: the air outlet is provided with the air conditioner filter screen with the formaldehyde removing function as claimed in any one of claims 1-5, and a monitoring sensor for monitoring the formaldehyde content is further arranged at the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911075989.1A CN110841472A (en) | 2019-11-06 | 2019-11-06 | Air conditioner filter screen with formaldehyde removing function, manufacturing method and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911075989.1A CN110841472A (en) | 2019-11-06 | 2019-11-06 | Air conditioner filter screen with formaldehyde removing function, manufacturing method and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110841472A true CN110841472A (en) | 2020-02-28 |
Family
ID=69598712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911075989.1A Pending CN110841472A (en) | 2019-11-06 | 2019-11-06 | Air conditioner filter screen with formaldehyde removing function, manufacturing method and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110841472A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334227A (en) * | 1999-06-02 | 2000-12-05 | Jsr Corp | Filter and its manufacture |
| CN2827506Y (en) * | 2005-10-24 | 2006-10-18 | 佛山市顺德区阿波罗环保器材有限公司 | Antiseptic deodorization filter net with silver plated on surface |
| CN203704299U (en) * | 2013-12-06 | 2014-07-09 | 孔军 | Filtration net for air conditioner |
| CN203874608U (en) * | 2014-05-05 | 2014-10-15 | 朱友从 | Multifunctional automobile air conditioner filter |
| CN206459328U (en) * | 2016-12-22 | 2017-09-01 | 天津市一玛防护材料有限公司 | A kind of air-conditioner air outlet removes formaldehyde screen pack |
| CN107781971A (en) * | 2016-08-16 | 2018-03-09 | 周琪凌 | One kind is used for multi-functional air circulating system environmental protection filter screen and preparation method thereof |
-
2019
- 2019-11-06 CN CN201911075989.1A patent/CN110841472A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000334227A (en) * | 1999-06-02 | 2000-12-05 | Jsr Corp | Filter and its manufacture |
| CN2827506Y (en) * | 2005-10-24 | 2006-10-18 | 佛山市顺德区阿波罗环保器材有限公司 | Antiseptic deodorization filter net with silver plated on surface |
| CN203704299U (en) * | 2013-12-06 | 2014-07-09 | 孔军 | Filtration net for air conditioner |
| CN203874608U (en) * | 2014-05-05 | 2014-10-15 | 朱友从 | Multifunctional automobile air conditioner filter |
| CN107781971A (en) * | 2016-08-16 | 2018-03-09 | 周琪凌 | One kind is used for multi-functional air circulating system environmental protection filter screen and preparation method thereof |
| CN206459328U (en) * | 2016-12-22 | 2017-09-01 | 天津市一玛防护材料有限公司 | A kind of air-conditioner air outlet removes formaldehyde screen pack |
Non-Patent Citations (1)
| Title |
|---|
| 惠清俊等: "《最好的医生是自己》", 30 September 2018, 陕西科学技术出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107469614A (en) | A kind of multifunctional air purifying screen pack | |
| CN207126375U (en) | A kind of multifunctional air purifying screen pack | |
| CN203837122U (en) | Multi-functional air purifier | |
| CN206222554U (en) | A kind of Novel air purification device | |
| CN201215367Y (en) | Purifying humidifier | |
| CN108905483A (en) | A kind of environmental protection air filter | |
| CN2907852Y (en) | Photocatalyst and active carbon synergistic air purification device | |
| CN207648961U (en) | Composite air purifier | |
| CN110841472A (en) | Air conditioner filter screen with formaldehyde removing function, manufacturing method and air conditioner | |
| CN207635477U (en) | Air purifier with environment monitoring function | |
| CN207230762U (en) | A kind of indoor air-purification device | |
| CN201482338U (en) | Urban and rural household multi-filter element air purifier | |
| CN106352425A (en) | Processing method of filtration component for wall-mounted air processor | |
| CN213873079U (en) | Pipeline type air disinfection and purification equipment | |
| CN105387530A (en) | Negative ion air purifier with humidifying device | |
| CN107726468A (en) | Intelligent rainforest air purification humidifier | |
| CN208504598U (en) | A kind of wall-hanging negative ion air-cleaner | |
| CN209399513U (en) | A kind of plasma indoor air cleaner | |
| CN209155335U (en) | A kind of building decoration air cleaning unit | |
| CN203869170U (en) | Air cleaner | |
| CN207778616U (en) | A kind of air cleaning unit with humidification function | |
| CN201248883Y (en) | Two-core air purifier | |
| CN207365217U (en) | A kind of three-stage filtration air purifier | |
| CN108709266A (en) | A kind of wall-hanging negative ion air-cleaner | |
| CN206875597U (en) | Photocatalytic air disinfection clarifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200228 |