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Thesvin flat activated carbon filter mesh is a custom-made odor removal filter designed to fit directly into air purifiers, fresh air systems, vehicle HVAC units, central air handling units, vacuum cleaners and industrial exhaust pretreatment. It adsorbs formaldehyde, benzene, ammonia and other volatile organic compounds (VOCs) from the air stream. It is intended for appliance and HVAC manufacturers, distributors and industrial users who need a drop-in carbon filter matched to their existing frame or duct dimensions.
Fitment is the starting point for every Thesvin flat carbon filter. The filter is built as a flat panel with a frame that locates into the host device or duct slot, so the sealing face and outer dimensions must match the equipment interface. We manufacture to your drawing or original part: length, width and thickness are made to your specified dimensions, and the frame can be produced in paper, aluminum, plastic or galvanized steel to suit the mounting method and required rigidity.
The flat format suits applications where the filter slides into a guide rail, sits in a cassette, or is held against a gasket face. Because the panel is rigid, it maintains its shape under airflow and keeps the carbon bed evenly distributed across the face. For equipment with limited depth, we can adjust the activated carbon loading and media form to stay within the available space without changing the outer envelope.
We also offer alternative carbon media structures to match different pressure and depth requirements: honeycomb activated carbon blocks (sintered carbon), honeycomb with plastic substrate, corrugated paper honeycomb, and cylindrical carbon filters. For flat panel fitment, the honeycomb and flat mesh formats are the usual choices. Our engineering team reviews the interface drawing before tooling, so the frame, gasket area and dimensions are confirmed before production.
The filter uses high-performance activated carbon as its core material, selected for high adsorption capacity. It targets volatile harmful gases including formaldehyde, benzene and ammonia, as well as common odors such as hydrogen sulfide and other VOCs. The carbon loading and media type can be adjusted to the target gas concentration and required service life.
Typical applications include household and commercial air purifiers, fresh air ventilation systems, vehicle air conditioning filters, central air conditioning circulation systems, vacuum cleaner filters and industrial exhaust gas treatment. In each case, the flat panel format allows the carbon stage to be integrated as a separate odor-removal layer, either as a standalone filter or as part of a multi-stage filtration train.
The filter is not designed as a particulate HEPA stage; its role is gas and odor adsorption. It can be combined with a particulate pre-filter in the same housing when the equipment layout allows. We recommend confirming the gas species and concentration with our team so that the carbon type and loading can be matched to the application.
| Item | Detail |
|---|---|
| Core material | High-performance activated carbon |
| Structure options | Honeycomb activated carbon (sintered carbon block), honeycomb activated carbon (plastic honeycomb), honeycomb activated carbon (corrugated paper type), activated carbon filter (cylindrical type) |
| Filtration performance | High-efficiency adsorption and removal of formaldehyde, benzene, ammonia and other volatile harmful gases (VOCs) |
| Application scope | Household/commercial air purifiers, fresh air systems, vehicle air conditioning filters, central air conditioning circulation systems, vacuum cleaner filters, industrial exhaust gas treatment |
| Dimensions and specifications | Non-standard customization according to customer equipment parameters and requirements |
Thesvin operates a quality management system certified to IATF 16949 (obtained in 2024), with IQC, IPQC and OQC controls applied through incoming inspection, in-process checks and outgoing inspection to maintain dimensional consistency from batch to batch. Our in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and resistance, as well as gas adsorption performance. The production base covers 50,000 m², including six clean workshops totaling 20,000 m². We also hold ISO 9001, ISO 14001 and ISO 45001 certification, and products comply with REACH and RoHS requirements with supporting documentation available.
Standard specifications typically ship within 7–15 days; OEM custom orders generally run 25–35 days, and large orders can be optimized through production scheduling. Activated carbon filters are packed in individual PE bags and cartons to prevent odor pickup and moisture during transport. Recommended storage is 5–35 °C at ≤70% relative humidity, away from solvents and paints.
To receive a quotation, send us the device or vehicle model, the filter size or a drawing, the airflow or water flow (if applicable), the operating conditions (gas type, temperature, humidity), and the required quantity. If you do not have a drawing, a photo of the old part with dimensions works. Contact us through our contact page and our team will respond with a fitment review and quote.
Fitment depends on matching the filter dimensions and frame to your equipment slot. We manufacture to your drawing or original part, so length, width, thickness and frame type are made to your specification. Send us the device model and a photo of the old filter with dimensions, and we will confirm the fit before quoting.
Yes. A photo of the old part next to a ruler, or the physical sample, is often enough for our engineering team to reverse-engineer the fitment. We will confirm dimensions and frame details with you before producing a sample.
The filter uses high-performance activated carbon and is designed for high-efficiency adsorption of formaldehyde, benzene, ammonia and other VOCs. Removal efficiency is above 85% for common odorous gases and harmful VOCs under test conditions. Actual performance depends on gas concentration, airflow and carbon loading, and can be optimized for your application.
Yes. We offer full customization of dimensions, frame material (paper, aluminum, plastic or galvanized), activated carbon type and loading, and packaging with your logo. Our team can also combine carbon with other filter stages if your housing allows.
Under standard indoor conditions with about 8 hours of daily operation, the recommended replacement interval is 6–12 months. Actual life depends on airflow, gas concentration, humidity and temperature. We can provide life testing and replacement guidance based on your operating conditions.
Standard specifications typically have an MOQ of 500–1,000 pieces; custom specifications are negotiated based on the design. Standard items ship in 7–15 days, while OEM custom orders generally take 25–35 days. Large orders can be scheduled to shorten lead time.
Yes. Standard samples are usually free with freight collect; custom samples may incur a tooling or sampling fee, which is credited against the bulk order. CNAS laboratory test reports can be provided with the sample.
Send us the device or vehicle model, size or drawing, airflow, operating conditions and required quantity through our contact page. Our team will review fitment and respond with a quotation. Start your inquiry at <a href="/en/contact">our contact page</a>.