A new air sterilizer

Abstract

The application discloses a novel air sterilizer and relates to the technical field of air purification; the air sterilizer comprises an integrated shell, a carrier assembly is arranged in the integrated shell, a first-stage filter assembly, a plasma cavity assembly, a second-stage filter assembly and a fan assembly are sequentially arranged in the carrier assembly from bottom to top, a power box and a control panel are respectively arranged on the carrier assembly on the two sides of the fan assembly, a control panel and an air outlet are arranged above the fan assembly, an air inlet is arranged at the bottom of the integrated shell, and a sensor support is arranged on the first-stage filter assembly; the novel air sterilizer is adopted, precise monitoring and prompting of the service life of a filter core are realized, the sterilization and disinfection effect is high, the risk of ozone leakage is completely eliminated, and the safety and cleanness of output air are ensured.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, and in particular to a novel air sterilizer. Background Technology

[0002] Air purifiers are widely used in medical, home, and office settings to purify air, kill bacteria, and remove harmful gases. Existing air purifiers typically employ technologies such as filtration, ultraviolet light, ozone, corona discharge, or plasma for disinfection. However, spraying disinfectant, ultraviolet light irradiation, and ozone are only suitable for surface disinfection; they cannot be used in conjunction with people, cannot provide continuous disinfection, and cannot prevent the spread of bacteria and viruses through the air. HEPA (High Efficiency Particulate Air Filter) and UV photolysis... Photolysis, photocatalysis, and other air purification and disinfection technologies all have different drawbacks. In particular, the single-use disinfection rate is low, and the disinfection effect decays significantly over time, sometimes even reaching zero, making it far from sufficient to block the spread of severe respiratory diseases. Although corona discharge does not decay over time, its mechanical structure limits the single-use disinfection rate to around 50%, which also fails to effectively block the spread of severe respiratory diseases. Plasma disinfection machines that utilize the corona discharge principle are often equipped with HEPA filters to compensate for the low single-use disinfection rate, leading to frequent HEPA filter replacements and a decay in disinfection rate over time.

[0003] In addition, there is a risk of secondary pollution. Disinfection equipment using plasma or high-voltage electrostatic technology is prone to producing byproducts such as ozone during use. If these byproducts cannot be effectively decomposed, they can pose a potential hazard to human health and cause secondary pollution. In terms of structural strength and mobility, large disinfection machines have many internal components. Insufficient structural frame strength can easily lead to deformation or noise, and they are also inconvenient to move.

[0004] Therefore, developing a new type of air sterilizer that can monitor the filter status in real time, effectively remove ozone byproducts, has good sealing performance, and a stable structure is of great practical significance. Summary of the Invention

[0005] The purpose of this invention is to provide a novel air purifier. By employing a multi-stage purification structure combining primary filtration, plasma disinfection, and secondary manganese dioxide filtration, it effectively intercepts particulate matter and efficiently kills bacteria and viruses in the air. Simultaneously, the manganese dioxide filter thoroughly decomposes ozone byproducts that may be generated by plasma technology, eliminating secondary pollution and ensuring the safety and cleanliness of the output air. A micro-pressure sensor monitors the filter element's clogging status in real time, and combined with a filter replacement port on the back, it provides accurate early warning of filter lifespan and convenient maintenance. The integrated shell, combined with multiple sealing cotton and reinforcing rib carrier components, not only significantly improves the overall structural strength and sealing performance of the machine but also optimizes the airflow layout, ensuring efficient, stable, and low-noise operation, thus significantly enhancing the user experience.

[0006] To achieve the above objectives, the present invention provides a novel air sterilizer, comprising an integrated housing, inside which a carrier assembly is disposed, wherein the carrier assembly comprises, from bottom to top, a primary filter assembly, a plasma chamber assembly, a secondary filter assembly, and a fan assembly, a power supply box and a control board respectively disposed on the carrier assembly on both sides of the fan assembly, a control panel and an air outlet disposed on the top of the fan assembly, an air inlet disposed on the bottom of the integrated housing, and a sensor bracket disposed on the primary filter assembly.

[0007] Preferably, a sealing cotton and a front plate are sequentially connected to the front of the integrated housing, and a back plate is embedded in the back of the integrated housing. A filter replacement port is provided at the lower position of the back of the integrated housing corresponding to the position of the primary filter component, and a filter switch is provided above the filter replacement port.

[0008] Preferably, the carrier assembly includes several longitudinal reinforcing ribs, and several transverse reinforcing ribs are connected to the bottom of the longitudinal reinforcing ribs. Several universal wheels are evenly arranged at the bottom of the transverse reinforcing ribs. A U-shaped connecting frame is arranged from bottom to top on the inner side of the longitudinal reinforcing ribs, which is connected to the primary filter assembly, the plasma chamber assembly, the secondary filter assembly and the fan assembly. The sealing cotton is arranged on the outer side of the longitudinal reinforcing ribs.

[0009] Preferably, the primary filter assembly includes a bottom cover plate, a dustproof net is provided on the bottom cover plate corresponding to the air inlet at the bottom of the integrated housing, a pull-out tray is provided on the dustproof net, the two sides of the pull-out tray are connected to the U-shaped connecting frame, the main body of the pull-out tray is set with a hollow structure, a filter element is provided on the hollow structure of the pull-out tray, and the bottom cover plate is connected to the sensor bracket.

[0010] Preferably, the sensor bracket is connected to the bottom cover plate, and the top and bottom of the sensor bracket are respectively located above and below the filter element. Micro-pressure sensors are provided on both the top and bottom of the sensor bracket, and a TVOC sensor is also provided at the upper position of the sensor bracket.

[0011] Preferably, the plasma chamber assembly disposed above the primary filtration assembly includes an upper housing and a lower housing. A first ozone sensor is disposed above the upper housing. A capacitor plate is disposed between the upper housing and the lower housing. A filter screen and a support plate are disposed between the capacitor plate and both the upper and lower housings. Support side plates are disposed at the front and rear of the capacitor plate. An inductor plate is disposed on the outer side of one of the support side plates. Current equalization plates are disposed on both the left and right sides of the capacitor plate. The capacitor plate includes an inter-electrode support, on which a plurality of electrode plates and an inter-electrode insulating plate are disposed.

[0012] Preferably, the secondary filtration assembly disposed above the plasma chamber assembly includes a plurality of manganese dioxide filters, and the manganese dioxide filters are connected to the U-shaped connecting frame corresponding to their positions.

[0013] Preferably, the fan assembly disposed above the manganese dioxide filter includes a blower and a fan tray. The blower is connected to the fan tray, and the fan tray is provided with ventilation holes. The upper part of the ventilation holes corresponds to the air outlet, and the lower part corresponds to the output end of the blower. The control panel and the air outlet are disposed above the fan tray.

[0014] Preferably, a second ozone sensor is provided at the edge of the ventilation hole, and the second ozone sensor is connected to the fan tray.

[0015] Therefore, the novel air sterilizer of the present invention, which adopts the above-mentioned content, has the following beneficial effects compared with the prior art: 1. This application adopts a three-stage treatment process of "primary filtration + plasma disinfection + secondary manganese dioxide filtration", which thoroughly purifies and disinfects with an efficiency of up to 99.96%, eliminating secondary pollution. The primary filtration intercepts particulate matter, plasma kills microorganisms, and the secondary manganese dioxide filter decomposes ozone byproducts. This combination not only ensures a highly efficient disinfection and sterilization effect, but also completely eliminates the risk of ozone leakage, ensuring the safety and cleanliness of the output air. 2. By setting micro-pressure sensors above and below the primary filter assembly, accurate monitoring and prompting of filter life are achieved; combined with the filter replacement port design on the back, filter replacement is both scientific and convenient, solving the problems of users not knowing when to replace the filter or the difficulty of replacement. 3. The structure is robust and the sealing performance is excellent. The reinforced rib design of the carrier components ensures the structural strength and load-bearing capacity of the whole machine. Combined with the front and rear panels and sealing cotton, multiple sealing measures form a tight airflow channel to prevent unfiltered air leakage and significantly improve the purification efficiency (CADR value). The human-machine interface is user-friendly. The control panel and air outlet are integrated on the top, which conforms to the ergonomic design and makes the operation intuitive and convenient. With real-time monitoring by multiple sensors (micro-pressure, TVOC, ozone), users can keep track of air quality and equipment operating status at any time, enhancing the user experience.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of a novel air sterilizer according to the present invention; Figure 2 This is an exploded view of a novel air sterilizer according to the present invention; Figure 3 This is a perspective view of a novel air sterilizer according to the present invention; Figure 4 This is an exploded view of the plasma chamber of a novel air sterilizer according to the present invention; Figure 5 This is a structural diagram of the primary filter component of a novel air sterilizer according to the present invention; Figure 6 This is a structural diagram of the air inlet of a novel air sterilizer according to the present invention; Figure 7 This is an enlarged view of the capacitor board of a novel air sterilizer according to the present invention; Figure 8 This is a schematic diagram of the plasma discharge principle of a novel air sterilizer according to the present invention.

[0018] Figure Labels 1. Integrated housing; 2. Carrier assembly; 3. Primary filter assembly; 4. Plasma chamber assembly; 5. Secondary filter assembly; 6. Fan assembly; 7. Power supply box; 8. Control board; 9. Control panel; 10. Air outlet; 11. Air inlet; 12. Sensor bracket; 13. Sealing cotton; 14. Front panel; 15. Back panel; 16. Filter replacement port; 17. Filter switch; 18. Micro-pressure sensor; 19. TVOC sensor; 21. Longitudinal reinforcing rib; 22. Lateral reinforcing rib; 23. Casters; 4. U-shaped connecting frame; 31. Bottom cover plate; 32. Dustproof net; 33. Pull-out tray; 34. Filter element; 41. Upper housing; 42. Lower housing; 43. First ozone sensor; 44. Capacitor plate; 441. Inter-electrode bracket; 442. Electrode plate; 443. Inter-electrode insulating plate; 45. Filter screen; 46. Support plate; 47. Support side plate; 48. Inductor plate; 49. Flow equalization plate; 51. Manganese dioxide filter; 61. Blower; 62. Blower tray; 63. Ventilation hole; 64. Second ozone sensor. Detailed Implementation

[0019] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] Example like Figures 1-7 As shown, a novel air sterilizer of the present invention includes an integrated outer shell 1. Inside the integrated outer shell 1 is a carrier assembly 2. From bottom to top, the carrier assembly 2 contains a primary filter assembly 3, a plasma chamber assembly 4, a secondary filter assembly 5, and a fan assembly 6. A power supply box 7 and a control board 8 are respectively mounted on the carrier assembly 2 on both sides of the fan assembly 6. A control panel 9 and an air outlet 10 are located above the fan assembly 6. An air inlet 11 is located at the bottom of the integrated outer shell 1, and a sensor bracket 12 is mounted on the primary filter assembly 3. The vertical air duct layout of "bottom air inlet, top air outlet" conforms to the principles of aerodynamics, facilitating smooth airflow within the machine. The carrier assembly 2, as the core supporting structure, integrates the various functional modules in layers, resulting in a compact and rationally laid-out overall structure, reducing the floor space occupied, and facilitating modular installation and maintenance of each component.

[0021] The front of the integrated housing 1 is sequentially connected with sealing cotton 13 and front panel 14, and the back of the integrated housing 1 is embedded with back panel 15. A filter replacement port 16 is provided on the lower part of the back of the integrated housing 1, corresponding to the position of the primary filter component 3. A filter switch 17 is provided above the filter replacement port 16. The sealing cotton 13 on the front panel can effectively fill the gap between the housing and the internal components, ensuring that the air completely passes through the filter component and improving the purification efficiency. The integrated housing 1 can effectively lock the trace radiation generated inside the sterilizer. The embedded connection of the back panel 15 further enhances the sealing and aesthetics of the whole machine. The specially designed filter replacement port 16 allows users to replace the filter element 34 without disassembling the whole machine, greatly improving the convenience of maintenance. The filter switch 17 ensures electrical safety during maintenance.

[0022] The carrier component 2 includes several longitudinal reinforcing ribs 21, with several transverse reinforcing ribs 22 connected to the bottom of the longitudinal reinforcing ribs 21. Several casters 23 are evenly arranged at the bottom of the transverse reinforcing ribs 22. U-shaped connecting frames 24, connected to the primary filter component 3, plasma chamber component 4, secondary filter component 5, and fan component 6, are arranged sequentially from bottom to top on the inner side of the longitudinal reinforcing ribs 21. Sealing cotton 13 is provided on the outer side of the longitudinal reinforcing ribs 21. The cooperation between the longitudinal reinforcing ribs 21 and the transverse reinforcing ribs 22 forms a high-strength frame structure, effectively supporting the heavy internal filter and fan components 6 and preventing structural deformation caused by gravity or vibration. The design of the casters 23 at the bottom makes the movement of the sterilizer more flexible and labor-saving. The U-shaped connecting frames 24 realize the standardized and quick disassembly and assembly of each component. The sealing cotton 13 on the outer side further enhances the sealing performance of the machine body.

[0023] The primary filter assembly 3 includes a bottom cover 31. A dustproof net 32 ​​is provided on the bottom cover 31 at the air inlet 11 at the bottom of the integrated housing 1. A pull-out tray 33 is provided on the dustproof net 32. The two sides of the pull-out tray 33 are connected to the U-shaped connecting frame 24. The main body of the pull-out tray 33 is designed with a hollow structure. The filter element 34 is provided on the hollow structure of the pull-out tray 33. The bottom cover 31 is connected to the sensor bracket. The pull-out tray 33 is designed to facilitate the quick removal and replacement of the filter element 34. By setting micro-pressure sensors 18 above and below the filter element 34, the pressure difference on both sides of the filter element 34 can be detected in real time, thereby accurately judging the degree of blockage and life of the filter element 34, providing a scientific basis for users to replace the filter element 34. The TVOC sensor 19 is set above the filter element 34 and can monitor the total volatile organic compound content in the air after preliminary filtration in real time, improving the level of intelligent monitoring.

[0024] The sensor bracket 12 is connected to the bottom cover plate 31. The top and bottom of the sensor bracket 12 are respectively located above and below the filter element 34. Micro-pressure sensors 18 are provided on both the top and bottom of the sensor bracket 12. A TVOC sensor 19 is also provided at the upper position of the sensor bracket 12.

[0025] The plasma chamber assembly 4, located above the primary filter assembly 3, includes an upper housing 41 and a lower housing 42. A first ozone sensor 43 is located above the upper housing 41. A capacitor plate 44 is located between the upper housing 41 and the lower housing 42. Filter screens 45 and support plates 46 are located between the capacitor plate 44 and both the upper and lower housings 41 and 42. Support side plates 47 are located at the front and rear of the capacitor plate 44. An inductor plate 48 is located on the outer side of one of the support side plates 47. Flow equalization plates 49 are located on both the left and right sides of the capacitor plate 44. The capacitor plate 44 includes an inter-electrode bracket 441. The plasma chamber assembly 41 is equipped with several electrode plates 442 and inter-electrode insulating plates 443. The plasma chamber assembly 4 kills bacteria and viruses in the air through high-voltage discharge, with high disinfection efficiency. The design of the current equalization plate 49 ensures that the current passes evenly through the electrode plates 442 on the capacitor plate 44, avoiding current deviation that would cause uneven disinfection efficiency at different positions of the plasma chamber assembly 4. The first ozone sensor 43 can monitor the ozone concentration generated during the plasma operation in real time, preventing ozone from exceeding the standard and ensuring safe use. The cooperative design of the capacitor plate 44 and the inter-electrode insulating plate 443 ensures the stability and safety of the discharge.

[0026] The capacitor plate 44 and the inductor plate 48 form an LC circuit. By combining the inductor on the inductor plate 48 and the capacitor formed by the capacitor plate 44, the frequency difference of their impedances can be used to construct a circuit that can "filter" signals of a specific frequency. When the circuit operates at a specific frequency, the inductive reactance and capacitive reactance cancel each other out, resulting in a resonance phenomenon. This is the physical basis for the precise frequency selection capability of the LC circuit. The working principle of the current sharing plate 49 is to make the current pass evenly through the electrode plate 442 on the capacitor plate 44, avoiding current deviation and preventing uneven current distribution on the electrode plate. This ensures the consistency of disinfection efficiency and avoids the phenomenon of inconsistent disinfection efficiency (i.e., "dead zones") in different positions of the plasma chamber component due to current deviation, thus ensuring the high efficiency and uniformity of the overall disinfection and sterilization effect.

[0027] The secondary filtration assembly 5 above the plasma chamber assembly 4 includes several manganese dioxide filters 51, which are connected to the corresponding U-shaped connecting frame 24. The manganese dioxide filters 51 have excellent catalytic oxidation performance and can efficiently decompose the ozone byproducts generated during plasma disinfection and convert them into oxygen that is harmless to the human body. This completely solves the problem of secondary ozone pollution that may exist in traditional plasma disinfection machines, and can also further adsorb residual odors and harmful gases. The working principle of the plasma cavity component 4: Under high-voltage AC drive, an alternating high-voltage electric field is formed in the area between the two electrode plates 442, ionizing the gas and generating a large number of free electrons, positive ions and neutral particles. The free electrons and positive ions have strictly equal charges, which is a classic three-dimensional plasma with an ion density as high as 1020 ions / cubic meter (1000 times the ion density of corona discharge). In addition, the plasma is generated through dielectric barrier discharge (DBD), also known as silent discharge. The two electrodes are driven by AC high voltage with a frequency of 50Hz to MHz. An insulating material is inserted between the two conductive electrodes. When the voltage is high enough, the gas between the two electrodes can be ionized to generate plasma. like Figure 8 As shown, in the plasma state, the outer electrons of the atoms of matter are rapidly pulled apart, and a chemical reaction occurs instantly to transform them into stable compounds. Bacteria and viruses are hydrocarbon compounds, which are transformed into stable compounds such as carbon dioxide and water after treatment, thus achieving sterilization and disinfection. Organic substances such as formaldehyde and TVOC react instantly with oxygen to generate pollution-free oxides (mainly carbon dioxide) and water, thereby achieving air purification and sterilization.

[0028] The fan assembly 6 above the manganese dioxide filter 51 includes a blower 61 and a fan tray 62. The blower 61 is connected to the fan tray 62. The fan tray 62 is provided with ventilation holes 63. The upper part of the ventilation holes 63 corresponds to the air outlet 10, and the lower part corresponds to the output end of the blower 61. The control panel 9 and the air outlet 10 are provided on the top of the fan tray 62. The fan tray 62 not only serves to fix the blower 61, but also plays a guiding role through the perforations, smoothly guiding the strong airflow generated by the blower 61 to the air outlet 10, reducing turbulence and noise, ensuring air volume, and improving the overall air supply efficiency of the machine.

[0029] A second ozone sensor 64 is installed at the edge of the ventilation hole 63 and is connected to the fan tray 62. A first ozone sensor 43 and a second ozone sensor 64 are installed at the rear end of the manganese dioxide filter 51 and the front end of the blower 61 at the edge of the ventilation hole 63, respectively, forming a dual-point monitoring system for ozone (at the plasma chamber outlet and the front end of the whole machine outlet). The first ozone sensor 43 at the top of the plasma chamber assembly 4 detects the initial concentration of ozone generated by plasma discharge, and the second ozone sensor 64 at the edge of the ventilation hole 63 detects the residual ozone concentration after catalytic decomposition by the manganese dioxide filter 51. The catalytic decomposition efficiency of the manganese dioxide filter 51 can be calculated in real time by the concentration difference between the two points. Based on the concentration difference, it can be determined whether the adsorption and catalysis of the manganese dioxide filter 51 is saturated. The equipment can issue an early warning to remind the replacement of the manganese dioxide filter 51 to avoid ozone leakage after failure.

[0030] Therefore, this invention provides a novel air purifier that employs the above-mentioned features. By combining a multi-stage purification structure with primary filtration, plasma disinfection, and secondary manganese dioxide filtration, it effectively intercepts particulate matter and efficiently kills bacteria and viruses in the air. Simultaneously, the manganese dioxide filter thoroughly decomposes ozone byproducts that may be generated by plasma technology, eliminating secondary pollution and ensuring the safety and cleanliness of the output air. A micro-pressure sensor monitors the filter element's clogging status in real time, and the filter replacement port on the back enables precise early warning and convenient maintenance of the filter element's lifespan. The integrated shell, combined with multiple sealing cotton and reinforcing rib carrier components, not only significantly improves the overall structural strength and sealing performance but also optimizes the airflow layout, ensuring efficient, stable, and low-noise operation of the entire machine, thus significantly enhancing the user experience.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A novel air sterilizer, characterized in that: The device includes an integrated housing, inside which a carrier assembly is arranged. From bottom to top, the carrier assembly consists of a primary filter assembly, a plasma chamber assembly, a secondary filter assembly, and a fan assembly. A power supply box and a control board are respectively arranged on the carrier assembly on both sides of the fan assembly. A control panel and an air outlet are arranged on the top of the fan assembly. An air inlet is arranged at the bottom of the integrated housing. A sensor bracket is arranged on the primary filter assembly.

2. The novel air sterilizer according to claim 1, characterized in that: The front of the integrated housing is connected in sequence with sealing cotton and a front plate, and the back of the integrated housing is embedded with a back plate. A filter replacement port is provided on the lower part of the back of the integrated housing, corresponding to the position of the primary filter component. A filter switch is provided above the filter replacement port.

3. The novel air sterilizer according to claim 2, characterized in that: The carrier assembly includes several longitudinal reinforcing ribs, and several transverse reinforcing ribs are connected to the bottom of the longitudinal reinforcing ribs. Several universal wheels are evenly arranged at the bottom of the transverse reinforcing ribs. A U-shaped connecting frame is arranged from bottom to top on the inner side of the longitudinal reinforcing ribs, which is connected to the primary filter assembly, the plasma chamber assembly, the secondary filter assembly and the fan assembly. The sealing cotton is arranged on the outer side of the longitudinal reinforcing ribs.

4. A novel air sterilizer according to claim 3, characterized in that: The primary filter assembly includes a bottom cover plate, a dustproof net is provided on the bottom cover plate corresponding to the air inlet at the bottom of the integrated housing, a pull-out tray is provided on the dustproof net, the two sides of the pull-out tray are connected to the U-shaped connecting frame, the main body of the pull-out tray is set with a hollow structure, a filter element is provided on the hollow structure of the pull-out tray, and the bottom cover plate is connected to the sensor bracket.

5. A novel air sterilizer according to claim 4, characterized in that: The sensor bracket is connected to the bottom cover plate. The top and bottom of the sensor bracket are respectively located above and below the filter element. Micro-pressure sensors are provided on both the top and bottom of the sensor bracket. A TVOC sensor is also provided at the upper position of the sensor bracket.

6. A novel air sterilizer according to claim 5, characterized in that: The plasma chamber assembly located above the primary filtration component includes an upper housing and a lower housing. A first ozone sensor is located above the upper housing. A capacitor plate is located between the upper housing and the lower housing. A filter screen and a support plate are located between the capacitor plate and both the upper and lower housings. Support side plates are located at the front and rear of the capacitor plate. An inductor plate is located on the outer side of one of the support side plates. Current equalization plates are located on both the left and right sides of the capacitor plate. The capacitor plate includes an inter-electrode support, on which several electrode plates and an inter-electrode insulating plate are located.

7. A novel air sterilizer according to claim 6, characterized in that: The secondary filtration assembly located above the plasma chamber assembly includes several manganese dioxide filters, and the manganese dioxide filters are connected to the U-shaped connecting frame corresponding to their positions.

8. A novel air sterilizer according to claim 7, characterized in that: The fan assembly above the manganese dioxide filter includes a blower and a fan tray. The blower is connected to the fan tray, and the fan tray has ventilation holes. The upper part of the ventilation holes corresponds to the air outlet, and the lower part corresponds to the output end of the blower. The control panel and the air outlet are located above the fan tray.

9. A novel air sterilizer according to claim 8, characterized in that: A second ozone sensor is provided at the edge of the ventilation hole, and the second ozone sensor is connected to the fan tray.

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