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The Thesvin flat antibacterial HEPA filter is a multi-layer composite panel filter with a high-density pleated core, designed to capture PM2.5, pollen, pet dander, cigarette smoke, and microbial aerosols. It is intended for OEM/ODM integration into household air purifiers, car purifiers, fresh-air air conditioners, and medical sterilization equipment. The filter combines HEPA particle filtration with an antibacterial and antiviral coating that inactivates influenza A virus, E. coli, and Staphylococcus aureus, and it achieves a dust mite removal rate of up to 82.4% under the FZ/T01100-2008 standard.
Fitment is the first consideration with any panel filter. The Thesvin flat antibacterial HEPA filter is built as a flat, high-density pleated pack, which allows it to sit flush in shallow housings where deeper V-bank or cylindrical filters will not fit. The filter is custom-made to your specified length, width, and thickness, so the outer dimensions can match the host device or duct opening without adapters.
The flat format also simplifies sealing and location. Because the filter presents a continuous face, it can be located against a gasket or frame in the unit, and the pleat pack is enclosed to maintain stability during handling and installation. Thesvin supports full OEM/ODM customisation, including frame material, pleat count, and sealing details, so the interface can be tailored to your existing filter slot. If you are designing a new unit, we can also develop a new tooling to match your mechanical drawing.
For replacement aftermarket filters, fitment is equally important. A filter that is 2–3 mm too large will not seat, and one that is too thin will bypass air. Thesvin therefore asks for either a drawing or an old part before quoting, so the dimensional match is confirmed at the sample stage rather than after mass production.
The core HEPA media provides strong filtration of PM2.5, pollen, pet dander, cigarette particles, and microbial dust aerosols. The exact efficiency depends on the grade selected; Thesvin can supply H11 to H14 grades, with the highest efficiency reaching 99.995% for 0.3 μm particles. This makes the filter suitable for applications where fine particulate control is required, such as household air purifiers and fresh-air systems.
In addition to particle removal, the filter carries an antibacterial and antiviral functional layer. This layer is designed to kill and inhibit influenza A virus, E. coli, and Staphylococcus aureus, addressing the source of microbial contamination rather than only trapping particles. For users concerned with allergens, the filter also delivers a dust mite removal rate of up to 82.4%, tested according to FZ/T01100-2008 by a national authoritative institution.
Typical end uses include household air purifiers, car purifiers, fresh-air air conditioning systems, medical sterilization equipment, and maternal and infant health appliances. Because the filter is flat and thin, it is particularly suited to compact devices where space is limited.
| Item | Detail |
|---|---|
| Product name | Flat antibacterial HEPA filter (flat anti-bacterial HEPA filter) |
| Filter construction and form | Multi-layer functional composite filter / flat high-density pleated structure |
| Core HEPA performance | Strong filtration of PM2.5, pollen, pet dander, cigarette particles, and microbial dust aerosols |
| Antibacterial / antiviral function | Effectively kills and inhibits influenza A virus, E. coli, and Staphylococcus aureus |
| Dust mite removal efficiency (test standard) | Up to 82.4% (referencing FZ/T01100-2008, tested and certified by a national authoritative institution) |
| Main end applications | Household air purifiers, car purifiers, fresh-air air conditioning systems, medical sterilization equipment, maternal and infant health appliances |
| Size and specification customisation | 100% OEM/ODM flexible customisation. Tooling and OEM production for different lengths, widths, thicknesses, and filtration efficiency combinations. |
| Quality certification system | Produced in a 20,000 m² clean workshop; certified to IATF 16949 and ISO 9001 for automotive-grade product consistency. |
Thesvin operates a 50,000 m² manufacturing facility in Zhongshan, Guangdong, China, including six clean workshops totalling 20,000 m². The site is certified to IATF 16949 (achieved in 2024), ISO 9001, ISO 14001, and ISO 45001. Products comply with REACH and RoHS, and compliance documents can be provided.
Quality control follows IQC, IPQC, and OQC throughout production. Incoming materials are inspected, in-process checks monitor pleat count, dimensions, and seal integrity, and outgoing inspection verifies appearance, dimensions, and pressure drop. Thesvin's own laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity, and resistance.
With more than 20 years of filtration experience and exports to Europe, the US, Japan, and South Korea, Thesvin has developed over 1,000 filtration solutions. Multiple automated production lines support monthly capacity in the millions of pieces. For this product, standard specifications typically ship in 25–35 days after order confirmation, and we can discuss VMI arrangements for long-term customers.
To receive a quotation, please provide: the device or vehicle model; the required size or a drawing (or an old part); the airflow or water flow (if applicable); the operating conditions such as temperature and humidity; and the estimated quantity. Our engineering team will review your requirements and respond with a proposal. Contact us to start the conversation.
Thesvin manufactures this flat HEPA filter to your specified dimensions, so fitment is confirmed against your drawing or old part before production. We recommend sending a sample or drawing for a fitment check. If you provide the slot dimensions and airflow direction, we can propose a matching configuration.
Yes. An old filter is often the fastest way to confirm fitment, especially for aftermarket replacements. We measure the old part and use it as the basis for the new tooling. Please include photos of the housing and note any seals or gaskets.
The filter can be supplied in H11 to H14 grades, with the highest efficiency reaching 99.995% for 0.3 μm particles. The antibacterial layer is tested for inhibition of E. coli, Staphylococcus aureus, and influenza A virus. Performance data is available from our CNAS-accredited laboratory.
The antibacterial and antiviral layer is tested against representative microorganisms including E. coli, Staphylococcus aureus, and influenza A virus. Dust mite removal is tested to FZ/T01100-2008 and achieves up to 82.4%. Test reports can be provided with shipments.
For this product, standard specifications typically have an MOQ of 500–1,000 pieces, while custom specifications generally require 2,000–3,000 pieces depending on material and structure. Lead time is 25–35 days after order confirmation. Large or long-term orders may be eligible for VMI inventory planning.
Yes. Standard samples are available in 3–5 working days, and custom samples typically take 7–15 working days depending on complexity. Sample fees are usually refundable against bulk orders. We encourage bench testing and field trials before mass production.
Replacement interval depends on the operating environment and dust loading. In typical household air purifier use, we recommend checking the filter every 6–12 months and replacing when pressure drop increases noticeably or odour develops. For critical medical or automotive applications, follow your maintenance schedule.
We support full OEM/ODM customisation, including dimensions, frame material, pleat count, filtration grade, and packaging. Our engineering team can develop new tooling based on your drawing and provide samples for validation. With over 1,000 filtration solutions developed, we can often adapt an existing design to speed up the process.