HI-IN
The Thesvin washable activated carbon odor filter (adhesive carbon type) is a polyurethane sponge filter with activated carbon bonded to its structure. It captures coarse particles such as hair and dust while adsorbing formaldehyde (HCHO), benzene, ammonia and other odorous gases. It is designed for range hoods and integrated stoves, and is also suited to air purifier pre-filters, fresh-air system pre-filters, automotive cabin filters, central air return grilles and industrial vacuum cleaners. Thesvin manufactures this filter in Zhongshan, Guangdong, China, and supports full-size OEM customization.
Fitment starts with the frame and the opening it seals against. This filter is a flexible polyurethane sponge with adhesive-bonded activated carbon, so it conforms to slightly uneven surfaces and can be cut or die-cut to match the host device or duct. The open-cell sponge structure allows air to pass with low resistance, which helps maintain the airflow performance of the appliance.
Because the material is flexible, it can be shaped for circular, square or irregular spaces. Thesvin offers stamping and forming services for various thicknesses (for example, 3 mm to 50 mm), pore densities (PPI) and outline dimensions, so the filter can be matched to the existing holder or filter frame. The sponge compresses slightly in use, which helps it sit in place without complex seals. For range hoods and integrated stoves, the filter is typically placed as a pre-filter layer in the odor-removal path; the exact mounting position is defined by the appliance design.
If you are replacing an existing part, the key interface dimensions are the length, width, thickness and pore density. Thesvin can produce filters to your drawing or to a sample of the old part, so the new filter matches the original footprint and airflow path. This approach reduces the risk of bypass or excessive pressure drop after replacement.
The filter performs two functions. First, it acts as a primary filter that intercepts larger particles such as hair, lint and dust before they reach the downstream filter stages. Second, the activated carbon adsorbs harmful gases including formaldehyde (HCHO), benzene and ammonia, as well as common cooking odors. For range hoods and integrated stoves, this means it can help reduce grease and odor carry-over into the exhaust path.
The washable design allows the filter to be rinsed and reused, which lowers consumable costs compared with single-use filters. The activated carbon is fixed to the sponge by a special curing process, so the carbon remains in place during normal washing. The filter is not intended to replace a high-efficiency particulate filter; it works as a pre-filter or odor-control layer within a broader filtration system.
Typical applications include the primary filter layer of air purifiers, pre-filtration in fresh-air ventilation systems, automotive air-conditioning filters, central air-conditioning return-air grilles and industrial vacuum cleaners. In each case, the filter’s low airflow resistance and flexible form help it integrate into existing equipment.
| Item | Detail |
|---|---|
| Product name | Washable Activated Carbon Sponge Filter (Adhesive Carbon Type) |
| Core substrate | Polyurethane sponge |
| Adsorbent material | Powdered or fine granular activated carbon, cured by a special process |
| Filtration performance | Primary filtration of large particles (hair, dust) plus adsorption of formaldehyde (HCHO), benzene, ammonia and other harmful gases |
| Physical structure | Washable and reusable; very low airflow resistance; flexible and easy to cut; good air permeability |
| Main end applications | Air purifier primary layer, fresh-air system pre-filter, automotive cabin filter, central air return grille, industrial vacuum cleaner |
| Size and customization | OEM/ODM supported. Thicknesses such as 3 mm–50 mm, various pore densities (PPI) and stamping/forming to outline dimensions |
| Quality certification | Produced in 20,000 m² clean workshops; company holds ISO 9001/14001 and IATF 16949 certifications |
Note: The technical data above reflects the standard product family. Custom thickness, PPI and dimensions are available to suit specific equipment. For performance data relevant to your application, please contact Thesvin.
Following these steps helps ensure the filter matches your equipment and performs as expected in service.
Thesvin operates a 50,000 m² production facility in Zhongshan, Guangdong, China, including six clean workshops totaling 20,000 m². The company has been certified to IATF 16949 since 2024, and also holds ISO 9001, ISO 14001 and ISO 45001 certifications. Products comply with REACH and RoHS environmental regulations, and compliance documents are available upon request.
Quality control covers incoming inspection (IQC), in-process inspection (IPQC) and outgoing inspection (OQC) to support dimensional consistency and batch-to-batch stability. The company’s CNAS-accredited laboratory can issue test reports for filtration efficiency, dust holding capacity and airflow resistance. With more than 20 years of experience in filter development and manufacturing, Thesvin has supplied European, American, Japanese and Korean markets for over 20 years and has developed more than 1,000 filtration solutions.
For delivery, standard specifications are typically shipped from stock; custom orders are scheduled after sample approval. Please share your required quantity and destination so we can confirm lead time and shipping arrangements.
To receive a quotation or a fitment recommendation, please provide the following information:
Send your details through our contact page: Contact Thesvin. Our team will respond with a technical proposal and quotation.
The filter is made from flexible polyurethane sponge, so it can be cut or die-cut to match your existing filter holder. To confirm fit, please provide the device model and the dimensions of the original filter, or send us a drawing or sample. Thesvin offers thicknesses from 3 mm to 50 mm and various pore densities (PPI), and can produce custom shapes for an accurate fit.
Yes. You can send us the old filter as a reference sample. Our engineering team will measure it and propose a matching specification. This is often the quickest way to ensure the replacement filter fits the same space and performs as expected.
This filter combines primary particle capture with adsorption of formaldehyde (HCHO), benzene, ammonia and odors. The exact efficiency depends on airflow, carbon loading and operating conditions. Thesvin’s CNAS-accredited laboratory can test filtration efficiency, airflow resistance and other parameters, and we can provide test reports for your specific configuration upon request.
Yes. We welcome sample evaluation. Standard specifications can usually be provided as samples, and custom samples are available according to your drawing or old part. Sample lead time is typically 1–3 working days for standard items and 7–15 working days for custom items. Please contact us with your requirements to arrange a sample.
For standard specifications, the MOQ is typically 1,000–2,000 pieces. Custom products may require an MOQ of about 3,000–5,000 pieces depending on tooling. Lead time for standard stock items is 3–7 days; custom orders are generally 25–35 days after sample approval. Please share your quantity and specifications for a precise quote and delivery schedule.
The filter is washable and reusable. Under normal household use, the service life can reach 12–18 months, depending on cooking frequency and cleaning routine. We recommend washing with warm water when you notice reduced airflow or odor control, and replacing the filter when cleaning no longer restores performance. Always follow the appliance manufacturer’s maintenance instructions.
Thesvin holds ISO 9001, ISO 14001 and ISO 45001 certifications, and has been certified to IATF 16949 since 2024. The product complies with REACH and RoHS environmental regulations, and compliance documents are available. Our CNAS-accredited laboratory can issue test reports for filtration performance.
Yes. We support OEM/ODM customization including dimensions, shape, thickness, pore density (PPI), activated carbon type and packaging. With over 20 years of experience and a 50,000 m² production facility, we can develop a filter to match your equipment and branding requirements. Please send your specifications or drawing to start the process.