37 results about "Gaseous pollutants" patented technology

This application relates to the field of big data acquisition technology and provides a carbon-saving deodorization control method and system based on online gas monitoring. The method includes: deploying a corresponding sensor array according to a preset sensor deployment strategy to collect gaseous environmental data, obtaining a multi-dimensional spatiotemporal dataset; extracting features from the multi-dimensional spatiotemporal dataset using a multi-layer convolutional neural network to obtain a diffusion feature set of odor pollutants; constructing an odor pollutant diffusion model based on the diffusion feature set; simulating the probability distribution of the diffusion path of the odor pollutants using a Monte Carlo algorithm based on the odor pollutant diffusion model to generate a diffusion topology; determining the control priority of a preset emission valve based on the diffusion topology; and controlling the opening and closing state of the preset emission valve according to the control priority to ensure that the concentration of the odor pollutants meets a preset concentration condition. This method helps improve the prediction accuracy of the diffusion path of gaseous pollutants.

The utility model discloses a gaseous pollutant monitoring devices of semiconductor clean room gathers sample gas through the gas collection subassembly of setting in semiconductor dustless room, and the anion and cation in sample gas are dissolved as sample solution through the impact bottle, and the standard solution of different concentration gradient is diluted through the standard solution dilution subassembly, and the ion chromatography analyzer is through the responsivity of different concentration gradient standard solution to the anion and cation in sample solution, and establishes standard curve and carries out quantitative analysis, and calculates the concentration of anion and cation, realizes the monitoring to the gaseous pollutant that possibly exists in semiconductor clean room, and the equipment short circuit risk that the sample solution in impact bottle caused is effectively prevented through setting up the anti -suck back subassembly of the application, and the anti -suck back subassembly is directly set up in impact bottle, and compared with setting up anti -suck back bottle alone, saves material piece, and the anti -suck back effect is better, and the equipment is not easily affected by short circuit, prolongs the service life of equipment.

The utility model provides a kind of multifunctional bionic ecological living space device, belong to indoor environment regulation technical field, disclose a kind of multifunctional bionic ecological living space device, to solve the problems such as the insufficient treatment of gaseous pollutants, easy secondary pollution, poor temperature and humidity adjustment of existing air purifier / fresh air machine.The device includes fresh air system (including fresh air motor, fresh air inlet, fresh air outlet), exhaust system (including exhaust fan, exhaust inlet), heat recovery system (heat exchange core), filtration group system (high efficiency filtration, exhaust primary efficiency filtration), negative oxygen ion assembly (negative ion generator module), sensing component (sensor module), sterilization system (ultraviolet lamp) and auxiliary heating device (PTC heater).Through multi-system cooperation, air purification, temperature and humidity regulation, sterilization, heat recovery and bionic environment creation are realized, and indoor living comfort and health are improved.

The application discloses an atmospheric pollutant in-situ qualitative and quantitative detection system and a detection method. The system comprises a first-stage vacuum system, a second-stage vacuum system and a third-stage vacuum system which are connected in sequence through differential holes. The first-stage vacuum system comprises an aerosol particle focusing inlet structure for forming a collimated particle beam from aerosol particles in a sample and a first-stage vacuum cavity. The second-stage vacuum system comprises a second-stage vacuum cavity and a second-stage vacuum pump. A diameter measuring module and an optical multi-cell module are arranged in the second-stage vacuum cavity. The third-stage vacuum system comprises a third-stage vacuum cavity and an aerosol particle spectrum / mass spectrum detection unit. The application can realize synchronous in-situ online qualitative and quantitative detection of aerosol particles and gaseous pollutants.

This invention discloses a device for treating air pollution, relating to the field of air pollution technology. It includes a fixed mounting base plate, with a filtration box mounted on top of the base plate. The front end of the filtration box is equipped with a drain plug, an exhaust pipe, and an air inlet hood. The upper interior of the filtration box contains a particulate filter plate and a gaseous pollutant adsorption plate for air filtration. A storage tank is installed at the rear end of the filtration box. Movable liquid collection plates connected to the storage tank are located at both ends of the filtration box, and atomizing nozzles are installed inside the movable liquid collection plates. This invention addresses the problem that conventional treatment devices mostly only adsorb and then filter gases, which, while effective for most pollutants, increases the consumption of filter material. Furthermore, existing treatment devices are limited by their single-technology limitations and lack the ability to synergistically control pollutants.

The application relates to the technical field of electrical equipment, and discloses a control method and device of an air purifier, computer equipment and the air purifier. The air purifier comprises a first filter screen and a second filter screen arranged in sequence on an air flow channel, the first filter screen is provided with adsorbing material, the second filter screen is provided with a normal-temperature catalyst, and the control method of the air purifier comprises the following steps: when a removal instruction of polluted gas is received, a fan of the air purifier is started; when the actual adsorption amount of the polluted gas in the first filter screen reaches a first threshold value, the fan is stopped; after the desorption of the polluted gas adsorbed on the first filter screen is completed, the fan is started again, so that the desorbed polluted gas is subjected to catalytic decomposition on the second filter screen. Therefore, the catalytic reaction can be carried out when the concentration of the gaseous pollutants is relatively high, and the catalytic effect of the catalyst is ensured.

The utility model provides a device for handling sulfuric acid gas gel and gas suspension molecular pollutant, the device includes at least one particle pretreatment groove and at least one filter groove, when waste gas flow enters particle pretreatment groove, through micron spray means, the particle that waste gas flow contains with sulfuric acid gas gel and gas suspension molecular pollutant is prompted to grow after its particle through nucleation, condensation and solidification mechanism, then waste gas flow enters filter groove, and the waste gas flow treated through particle pretreatment groove is cleaned with wet type washing technology, the device can effectively remove the solid, liquid, gas gel state such as sulfuric acid gas gel and gaseous pollutant suspended in the airflow generated in semiconductor technology.

A head assembly includes an upper cover assembly disposed above a plasma reaction zone, the upper cover assembly including a top plate and a bottom plate defining a region for containing a cooling fluid therebetween, the bottom plate including one or more openings, one or more plasma modules coupled to the plasma reaction zone through the openings, each of the plasma modules including a microwave source generating a microwave oscillation, a waveguide assembly, and a resonant cavity, the microwave oscillation reacting with a reactant gas, and one or more guide line assemblies configured to direct an effluent from a semiconductor process to the plasma reaction zone.

This invention discloses a method for analyzing multi-source monitoring data of urban air quality, relating to the field of environmental monitoring multi-source heterogeneous data fusion and digital processing technology; it addresses the problems of inconsistent physical benchmarks, distortion in temporal breakpoint repair, and delayed early warning in multi-source monitoring data. First, based on meteorological parameters, differentiated physical benchmark transformations are performed on gaseous pollutants and particulate matter to generate a normalized concentration matrix aligned with physical states. Then, a temporal topology map is constructed to map breakpoints, and gradient compensation vectors are generated using the spatiotemporal first derivative of the neighboring sensor sequences to reconstruct the continuous temporal concentration matrix. Next, the discrete deviation between standard stations and microstations is calculated, and spatial heterogeneity weighting is performed using functional zoning to generate a dynamic calibration matrix, mapping and outputting a global calibration concentration field. Finally, the step-approximation difference vector is calculated by comparing two sets of limit matrices, and extreme nodes of abrupt gradients are extracted to generate a multi-dimensional pollution risk tracing map, achieving precise location and dynamic early warning of hidden pollution sources.

The application relates to the technical field of gas detection, and discloses an indoor gaseous pollutant positioning method and system based on multi-source sensor fusion, which comprises the following steps: arranging a multi-source sensor array, performing environment adaptation and error correction, synchronously collecting concentration data and environment influence parameters of indoor gaseous pollutants, obtaining a time-sequenced fusion data set of the indoor gaseous pollutants, dynamically associating and decoupling the concentration data and the environment influence parameters in the time-sequenced fusion data set to obtain a pollutant concentration feature data set of the indoor gaseous pollutants, obtaining a concentration spatial distribution gradient field of the indoor gaseous pollutants, obtaining a pollutant concentration field atlas of the indoor gaseous pollutants, and obtaining a precise positioning result of the indoor gaseous pollutants. Through multi-source sensor fusion and dynamic correction, the indoor gaseous pollutants can be precisely positioned with high accuracy and high reliability.

This utility model relates to the field of pollutant control technology and discloses a gaseous pollutant control device for a rotary kiln incineration system. The device includes a base plate, a rotary kiln, a treatment structure, and a filter structure. The rotary kiln and treatment structure are respectively mounted on the base plate. The treatment structure is connected to the rotary kiln via the filter structure. The treatment structure includes a treatment tank, a support, a top plate, a spray pipe, a circulation pump, a first connecting pipe, a second connecting pipe, a motor, and a lead screw. The treatment tank is fixedly mounted on the base plate via the support. A drain valve is installed at the bottom of the treatment tank. An inlet pipe and several atomizing nozzles are installed on the spray pipe. The circulation pump connects the drain valve and the spray pipe via the first and second connecting pipes. A permeable plate is mounted on the top plate via a motor, a lead screw, and a guide rod. An outlet pipe is fixedly connected to the top plate. This utility model, through its treatment structure, ensures the full reaction of sulfur dioxide and alkaline solution, and through recycling, reduces the consumption of alkaline solution and lowers operating costs.

The utility model discloses a kind of composite processing purification devices of mute safety, belong to air purification technical field, including device pipe body, the inside detachably installation of device pipe body one end has primary filter element, fan is installed in the front of primary filter element, insulating cover is installed in the front of fan, high-voltage electrostatic precipitator is detachably installed in the inside of insulating cover, soundproof board is installed in the front of high-voltage electrostatic precipitator, adsorption decomposition co-effect filter element is installed in the front of soundproof board, gathering cover is installed in the front of adsorption decomposition co-effect filter element;The utility model, by primary filter element filtering solid-state foreign matter, high-voltage electrostatic precipitator adsorbs fine particulate matter, adsorption decomposition co-effect filter element removes gaseous pollutant, cooperate anion generator and anion emitter in gathering cover improve air and inhibit microorganism, and many components are cooperated to realize the comprehensive treatment to air pollutant, and the purification effect is greatly improved.

This application provides a gas detection system and method based on near-infrared wavelength modulation and mid-infrared pulsed laser synergy, relating to the fields of spectroscopic gas detection and industrial flue gas monitoring. In industrial sites such as biomass power plants, hazardous waste incineration plants, and aluminum smelters, the flue gas generated in their flues has complex compositions. Traditional chemical detection methods are insufficient to meet real-time requirements, while other optical detection methods, such as Fourier transform infrared spectroscopy and ultraviolet differential spectroscopy, suffer from high costs and difficulty in avoiding water vapor interference. To address this, a system and method for detecting the concentration of gaseous pollutants in industrial flue gas based on near-infrared wavelength modulation and mid-infrared pulsed laser synergy is proposed. This system combines near-infrared wavelength modulation spectroscopy with mid-infrared pulsed direct absorption spectroscopy, employing multiple near-infrared tunable continuous lasers and mid-infrared tunable pulsed lasers. It utilizes time-division multiplexing and polling modes, combined with a common optical path design, to achieve real-time online monitoring of the concentration of various gaseous pollutants, ultimately significantly reducing the overall system cost.

The application discloses a flue gas multi-pollutant collaborative treatment device, and belongs to the technical field of flue gas treatment devices. In order to solve the problems that the existing liquid spraying treatment can cause corrosion of metal components of equipment, a large amount of wastewater can be generated by the liquid spraying, and the overall treatment cost can be increased, the application comprises a treatment tank and a gas inlet connected to one side of the treatment tank, an inner cavity is arranged in the middle of the inner side of the treatment tank, a flow pipe is communicated with one side of the bottom of the inner cavity, and a plurality of groups of dry spraying mechanisms are installed on the inner side of the inner cavity. The double-fluid spraying driven by airflow can treat various pollutants such as sulfur dioxide, nitrogen oxides and heavy metals in flue gas, the separation of large-particle dust, the separation of small dust, the adsorption of gaseous pollutants and the catalytic reaction of the gaseous pollutants can be simultaneously completed in the same cavity of the treatment tank, the treatment does not generate wastewater, additional wastewater treatment is not needed, a plurality of devices are not needed to be connected in series, and system resistance and energy consumption are reduced.

The invention belongs to the technical field of ambient air monitoring, and provides a semi-passive air sampler which comprises a main shell, a sampling pipe is detachably connected in the main shell, the sampling pipe is filled with a gaseous pollutant adsorbent, an air entraining head is arranged above the main shell, the air entraining head is communicated with the air inlet end of the sampling pipe, and the air entraining head is communicated with the air inlet end of the sampling pipe. A lifting assembly is arranged between the air entraining head part and the main shell; the auxiliary shell is detachably connected to the main shell through a buckling piece, an air outlet channel is formed in the auxiliary shell, one end of the air outlet channel is communicated with the air outlet end of the sampling pipe, the other end of the air outlet channel is vertically communicated with an air cylinder, a solar heating mechanism is arranged in the air cylinder, and the solar heating mechanism is used for heating air at the bottom of the air cylinder; and air in the air outlet duct is driven to flow into the air duct. Passive driving can be achieved through solar energy, semi-passive air collection is achieved, and meanwhile the sampling height can be flexibly adjusted.

The application discloses an electrochemical air purification device, and relates to the technical field of air purification, wherein the electrochemical air purification device comprises a direct-current power supply, an anode, a cathode, a water distribution element and a water pump; the anode is electrically connected with the positive electrode of the direct-current power supply; the cathode is electrically connected with the negative electrode of the direct-current power supply; the water distribution element is arranged between the anode and the cathode; the water pump is connected with the water distribution element and is used for circulating and conveying water containing electrolyte to the water distribution element; a plurality of first channels extending upwards and downwards and a plurality of second channels extending from the anode to the cathode are arranged in the water distribution element, the plurality of second channels are all communicated with the first channels, the water pump conveys the water containing electrolyte to the water distribution element, the water containing electrolyte passes through the first channels and the second channels, simultaneously contacts the anode and the cathode and makes the anode and the cathode conductive, after the anode and the cathode are electrified, electrochemical reaction is generated in the water, active species are generated to decompose gaseous pollutants in air.

This invention discloses an apparatus for studying atmospheric chemical and biological reactions. The apparatus comprises: a gaseous pollutant generation module, including at least one independent gas generation sub-module; a humidity control module for regulating airflow; a gas mixing chamber, with its inlet a connected to both the gaseous pollutant generation module and the humidity control module; a reaction chamber, with a sample holder inside its shell, an inlet b and an outlet b on the shell, and a single-sided opening for placing biological samples on the sample holder, the opening being fitted with a removable sealing plate; the inlet b connected to the outlet a of the gas mixing chamber; the outlet b connected to a pollutant monitoring module; and the pollutant monitoring module for monitoring the gaseous pollutants flowing out of the reaction chamber. All the above components are connected via gas paths. This invention is simple to operate, has a wide range of applications, and allows for controllable gaseous pollutant concentration and contact time.

The application belongs to the technical field of air purification, and particularly relates to a preparation method of a composite bioenzyme for air purification. The preparation method comprises the following steps: mixing a weathered product of volcanic rock and deep-sea deposits, and obtaining a mineral powder after treatment; mixing freeze-dried bamboo leaves, coltsfoot flowers, whole plants of wormwood, branches and leaves of rosemary, stems and leaves of sesame, and petals of cherry blossoms, and sequentially performing low-temperature supercritical CO2 extraction and water extraction-microwave auxiliary extraction to obtain plant extract; mixing a mineral suspension prepared from the mineral powder, the plant extract and a fungus suspension, and performing fermentation in a fermentation medium; after the fermentation is completed, centrifugal separation is performed on solid phase and liquid phase, and then the solid phase and the liquid phase are mixed again to obtain the composite bioenzyme. The application breaks through the limitation of single enzyme preparation, and through the synergistic effect of a mineral carrier, plant extract and microbial fermentation, a multi-enzyme composite system is constructed, which can simultaneously degrade various gaseous pollutants such as ammonia and formaldehyde, and has a bacteriostatic function.

This utility model discloses a hydrogen fuel cell filter, including an inlet pipe, an outlet pipe, and a filter canister. The inlet pipe and outlet pipe are located at two ends of the filter canister and are integrally formed with the filter canister. The filter canister has a canister body and an inlet-side baffle and an outlet-side baffle built into and integrally formed with the canister body. The inner cavity of the filter canister is located between the inlet-side baffle and the outlet-side baffle, and a filter medium is placed inside the inner cavity of the filter canister. The inlet-side baffle has multiple inlet-side through holes, each of which communicates with an inlet-side guide pipe. The inlet-side guide pipe is located on the side of the inlet-side baffle facing the inner cavity of the filter canister and is detachably connected to the inlet-side baffle. The hydrogen fuel cell filter disclosed in this utility model has the advantage that the inlet-side guide pipe and the outlet-side guide pipe are detachably connected and embedded in the filter medium, which greatly increases the contact area between the gas and the filter medium and effectively improves the filtration efficiency of gaseous pollutants.

The utility model discloses a device for handling crude oil generator waste gas, include: filter box, its inside fixed mounting has active carbon adsorption body, chitosan adsorption body and polypropylene filter core in proper order, carries out the filtration to heavy metal, particulate matter in crude oil generator waste gas, purification cylinder is set up in one side of filter box, and its top end fixed mounting has upper cylinder cover, and the top of upper cylinder cover is provided with micro - nanometer bubble generator, and the gaseous pollutant in crude oil generator waste gas is purified. The utility model discloses a dust remover preliminary dust removal is used, and the triple filtration of modified active carbon, chitosan and polypropylene filter core is combined, realizes the gradient high -efficient removal of heavy metal, particulate matter, and micro - nanometer bubble generator produces micron - grade bubble water, and the hotspot effect of using bubble breakage decomposes gaseous pollutant, and the reaction is more thorough than traditional sprinkling method, and axial flow fan forced air supply forms negative pressure, accelerates waste gas flow, and promotes the filtration efficiency.

This invention discloses a method for pollution suppression and energy recovery regulation in the thermal treatment of decommissioned new energy devices, comprising the following steps: S1, identifying the ratio of organic to inorganic components in the decommissioned new energy device to determine the thermal treatment operating range; S2, during pyrolysis or gasification, by regulating the heating rate, reaction temperature, residence time, and reaction atmosphere, the organic components are preferentially converted into combustible gases or stable carbonaceous residues; S3, during the reaction, the atmosphere and solid phase composition are simultaneously regulated to suppress the generation of halogenated organic intermediates and harmful gaseous pollutants; S4, the generated combustible gases are used for energy recovery, while ensuring that the emitted gases meet environmental control requirements. This method achieves synergistic coupling of targeted pollutant suppression and efficient energy recovery through precise regulation of key thermal treatment parameters, and is applicable to large-scale resource recovery engineering scenarios for decommissioned new energy devices.

This application discloses an exhaust gas treatment system, method, and vehicle, relating to the field of engine aftertreatment technology. The exhaust gas treatment system includes a first treatment unit, a second treatment unit, a third treatment unit, and a control unit. The first treatment unit is adapted to communicate with the exhaust gas outlet of the engine. The second treatment unit is connected to the output of the first treatment unit and is used to convert hydrocarbons and carbon monoxide. The third treatment unit is connected to the output of the first treatment unit and is used to convert nitrogen oxides. The second and third treatment units can be selectively connected to the output of the first treatment unit to adapt to different engine operating states. Thus, depending on the specific operating state of the engine, the first treatment unit, in conjunction with the second or third treatment unit, efficiently treats gaseous pollutants in the exhaust gas, thereby achieving ultra-low emission control and meeting increasingly stringent emission regulations.

This invention provides an electrothermal automatic regenerating activated carbon air conditioner filter. It includes a humidity adaptive adjustment module, an electrostatic dust removal module, and a self-regenerating adsorption module, arranged sequentially along the airflow direction within the outer shell and its interior. The humidity adaptive adjustment module regulates the humidity of the air before it enters the electrostatic dust removal module to the optimal range of 45-75%. The electrostatic dust removal module includes an electrostatic generation unit and an electrostatic dust collection unit, employing a low-pressure, low-ozone design. The self-regenerating adsorption module includes honeycomb activated carbon loaded with MnO2 catalyst and a PI heating membrane sandwiched within it, used for adsorbing gaseous pollutants and electrothermally regenerating them. The control module controls humidity adjustment based on sensor feedback signals and initiates heating regeneration when adsorption is saturated. This invention ensures stable and efficient electrostatic dust removal through humidity adjustment and achieves high purification efficiency, low ozone emissions, low maintenance costs, and high safety and reliability through electrothermal regeneration.

Title: Pollutant Microanalyzer and Associated Process The invention relates to a device for analyzing a pollutant contained in a gaseous phase, comprising: - sampling means capable of sampling said gaseous phase and generating a flow stream, - capture means capable of allowing said gaseous phase and the trapping liquid solution to flow on either side of a porous membrane, and of transferring said gaseous pollutant to the trapping solution, reaction means connected to the capture means, capable of reacting the enriched trapping solution with the pollutant, to generate a reaction product, - means for analyzing the reaction product capable of analyzing said reaction product in solution and deducing therefrom a measurement of the concentration of said pollutant in the gaseous phase.The device is characterized in that it also comprises: - a reference gas inlet connected to the capture means and capable of supplying the capture means with a flow of reference gas, and - a valve device such as a three-way valve disposed upstream of the capture means to supply the capture means alternately with said gaseous phase comprising the pollutant, or with said reference gas. Figure for the abbreviation: Fig. 1,

This invention relates to the fields of semiconductor manufacturing and microelectronics processing technology, and particularly to a highly antifouling polyvinyl acetal film, its preparation method, and its applications. This invention introduces a trace amount of fluorinated surfactant into the film-forming solution of polyvinyl acetal. Utilizing the surface self-migration effect of the surfactant during the film-forming process, a stable and dense hydrophobic antifouling barrier is constructed on the film surface. This barrier effectively repels and reduces the adsorption of organic gaseous pollutants and water vapor from the environment, maintaining the stability of the film's optical properties in cleanroom environments. Compared to films without the addition of fluorinated surfactant, its antifouling performance is significantly improved, which helps extend the service life of the protective film.

The invention belongs to the technical field of internal combustion engine testing, and discloses a system and method for verifying influence of crankcase ventilation on emission of a diesel engine, a diesel engine aftertreatment system comprises a DOC, a DPF and an SCR, the verification system comprises an engine pedestal and a testing assembly, the diesel engine is arranged on the engine pedestal, and the testing assembly is arranged on the engine pedestal. A critical flow venturi tube of the test assembly is communicated with the full-flow dilution discharge sampling system through a pipeline, a crankcase ventilation pipe is communicated with an electromagnetic three-way valve of the test assembly, and the other two ports of the electromagnetic three-way valve are respectively communicated with an intake manifold and the critical flow venturi tube. And two sampling probes are arranged on the engine exhaust pipe in front of and behind the post-processing system and are correspondingly communicated with the two emission analysis units respectively. According to the verification method, through the verification system and a rigorous test process, the absolute contribution amount and the relative contribution rate of crankcase blow-by gas to engine gas pollutant and particulate matter quantity emission under different working conditions are accurately quantified.

This invention discloses a method for monitoring and flux calculation of fugitive emission sources from industrial enterprises, relating to the field of fugitive emission monitoring of gaseous pollutants. The method includes: investigating the target industrial enterprise and collecting relevant data on its fugitive emissions; determining and implementing a monitoring plan for the target industrial enterprise based on the fugitive emission data and preset monitoring rules; performing data conversion and statistical analysis on the monitoring results; and calculating the fugitive emission source strength of the target industrial enterprise based on the statistical analysis results. This invention obtains the fugitive emission source strength of industrial enterprises based on the "investigation-monitoring-statistics-calculation" method, which is less affected by wind speed and direction and has accurate measurement characteristics. It can be used to correct the unit product emission factor of such industrial enterprises in the process of calculating the emission amount of target pollutants using the emission inventory method, providing a scientific basis for local environmental protection departments to achieve the goal of precise control of fugitive emission sources from industrial enterprises.

This invention provides an integrated device for waste gas purification and dust recovery in cotton production, relating to the field of waste gas purification and dust recovery. It includes a base plate, a primary pre-filtration component, a secondary water washing purification component, and an activated carbon adsorption purification box. A protective frame is fixedly installed on top of the base plate, and an air inlet frame is fixedly connected to the upper side of the base plate. An air inlet channel extends outward from the bottom wall of the air inlet frame, and a corrugated air inlet pipe is fixedly installed at the air inlet of the air inlet channel. By adopting a graded treatment mode of "primary pre-filtration + secondary water washing purification + deep activated carbon adsorption," the primary pre-filtration component precisely intercepts large cotton clumps, lint, and coarse dust particles through the filter cartridge. The secondary water washing purification component uses a wave-generating structure to ensure full contact between the waste gas and water, efficiently adsorbing soluble gaseous pollutants. Modified high-efficiency activated carbon in the activated carbon adsorption purification box further removes residual gaseous pollutants.

This utility model discloses an air conditioning filter element, relating to the technical field of air conditioning filter elements. It includes a filter element housing with a rectangular frame, an internal mounting groove for embedding the air conditioning filter element, and symmetrically arranged positioning bolts on the outer side of the filter element housing. An extension plate is mounted on the rear surface of the filter element housing. This air conditioning filter element adopts a multi-layer progressive filter structure, requiring only one replacement to effectively improve in-vehicle air quality, effectively removing both physical and gaseous pollutants. It is long-lasting and effective. Furthermore, the filter element uses meltblown nonwoven fabric as its filter substrate, capable of filtering particles larger than 2µm in diameter, efficiently filtering PM2.5 particles and pollen, and exhibiting high dust removal efficiency.