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The Thesvin automotive cabin air filter with activated carbon is a drop-in replacement filter for passenger cars, buses, heavy trucks and construction machinery. It combines high-efficiency HEPA media with high-iodine coconut-shell granular activated carbon to capture PM2.5 and dust while adsorbing ammonia, sulfides and exhaust VOCs. It is designed for vehicle OEMs, aftermarket distributors and fleet maintainers who need reliable fit and odour control.
Fitment starts with the housing. This filter is engineered to match the original cabin air filter's length, width, thickness and pleat count, so it seats correctly in the HVAC blower assembly without forcing the frame or bypassing unfiltered air. The pleated media pack is supported by a frame that maintains dimensional stability under airflow, and the activated carbon layer is bonded within the composite structure to prevent migration.
Because vehicle HVAC ducts vary widely, Thesvin offers full OEM/ODM customisation: you can specify any length, width, thickness and pleat count based on your original vehicle's air duct requirements. This means the filter can be produced to your drawing or sample, ensuring the frame, seal and media area align with the host device. The result is a filter that installs like the original and seals against the housing to avoid unfiltered bypass.
The dual-layer composite structure targets both particulate and gaseous contaminants. The HEPA-grade media captures PM2.5 particles and dust with an efficiency of over 95% for PM2.5, while the high-iodine coconut-shell activated carbon adsorbs odours, ammonia, sulfides, formaldehyde, benzene series and other VOCs from exhaust fumes and ambient pollution. This makes it suitable for urban driving, tunnels and areas with heavy traffic.
The filter also features low airflow resistance thanks to its pleating process, which helps maintain HVAC blower performance and cabin comfort. High dust-holding capacity extends service life, and the filter is available in antibacterial, odour-removal and dust-removal variants to match different market needs.
| Item | Detail |
|---|---|
| Product name | Automotive Cabin Air Filter / Automotive Air Filter |
| Core structure | Dual-effect composite: high-precision HEPA filter media + high-iodine coconut-shell granular activated carbon |
| Core purification performance | High-efficiency interception of PM2.5 particles and dust + targeted adsorption of ammonia, sulfides and exhaust VOCs |
| Physical fluid characteristics | Good air flow characteristics, low operating resistance, high dust-holding capacity and long service life |
| Main application scenarios | Passenger cars (sedans/SUVs/MPVs), commercial buses, heavy trucks and construction machinery HVAC systems |
| Customisation | 100% OEM/ODM customisation for all vehicle models. Custom length, width, thickness and pleat count according to different original vehicle air duct requirements |
| Quality certification | 50,000 m² factory, IATF 16949 automotive quality management system, CNAS-accredited testing centre for automotive-grade factory quality |
Thesvin operates a 50,000 m² manufacturing facility, including 6 clean workshops totalling 20,000 m², and has been certified to IATF 16949 since 2024. Our quality control follows IQC, IPQC and OQC processes to ensure dimensional consistency and performance reliability. The in-house CNAS-accredited laboratory can issue test reports for filtration efficiency, dust-holding capacity and resistance, and we hold ISO 9001, ISO 14001 and ISO 45001 certifications. Products comply with REACH and RoHS requirements, and we have over 20 years of export experience to Europe, the US, Japan and Korea.
Standard models typically have an MOQ of 1,000–2,000 pieces; custom models usually require 3,000–5,000 pieces depending on tooling and media. Samples of existing specifications can be provided free within 3–5 working days (freight collect); custom samples are delivered within 7–15 working days after drawing confirmation. Bulk orders typically ship in 25–35 days, with expedited scheduling available upon request.
To get an accurate quote, please provide the following: device or vehicle model, required dimensions or a drawing, airflow or water flow requirements, operating conditions (temperature, humidity, contaminants) and estimated annual quantity. Our team will respond with a tailored solution and quotation. Contact us now to start your project.
Thesvin cabin air filters are customised to match your original filter's length, width, thickness and pleat count. If you provide the vehicle model or send an old part, we can produce a filter that seats correctly in your HVAC housing. This ensures proper sealing and avoids unfiltered air bypass.
Yes. You can send us your used cabin air filter as a sample, and our engineering team will measure it and create a drawing for your approval. This is often the fastest way to ensure an exact fit, especially for older or uncommon vehicle models.
The HEPA-grade media in this filter captures PM2.5 particles with an efficiency of over 95%. It also adsorbs odours, ammonia, sulfides and VOCs from exhaust fumes, helping to maintain a comfortable cabin environment.
Under standard operating conditions, we recommend replacing the filter every 6–12 months or 15,000–20,000 km, whichever comes first. In areas with heavy smog or dust, shorten the interval to maintain performance. The high dust-holding capacity of the media helps extend service life.
Yes. Samples of existing specifications are available free of charge within 3–5 working days (freight collect). For custom specifications, samples are delivered within 7–15 working days after drawing confirmation. This allows you to verify fit and performance before committing to production.
Standard models typically have an MOQ of 1,000–2,000 pieces, while custom models usually require 3,000–5,000 pieces depending on tooling and media. Bulk orders generally ship within 25–35 days, and expedited scheduling can be arranged for urgent projects.
Yes. We support full OEM/ODM customisation, including dimensions, frame structure, media grade (HEPA/activated carbon/antibacterial), pleat count and packaging with your logo. With over 20 years of experience and more than 1,000 filter solutions developed, we can tailor the product to your specific requirements.
Our facility is IATF 16949 certified (2024) and holds ISO 9001, ISO 14001 and ISO 45001 certifications. Our in-house CNAS-accredited laboratory can provide test reports for filtration efficiency, dust-holding capacity and resistance. Products comply with REACH and RoHS requirements.