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Celrith flat antibacterial HEPA filters are multi-layer composite filters that capture PM2.5, pollen, pet dander, cigarette smoke particles and microbial aerosols while actively inhibiting influenza A virus, E. coli and Staphylococcus aureus. They are designed for air purifiers, vehicle cabin purifiers, fresh-air air-conditioning systems and medical sterilization equipment. The flat, high-density pleated format supports custom sizes and efficiency grades for OEM and ODM programs.
Indoor air carries a mix of contaminants that affect both equipment and occupants. Fine particulate matter such as PM2.5 penetrates deep into the respiratory system, while pollen and pet dander trigger allergic reactions. Cigarette smoke leaves oily residues that clog filter media and reduce airflow over time. Microorganisms including bacteria, mould spores and viruses circulate in aerosol droplets and can settle on cooling coils and duct surfaces, where they multiply and release odours.
In humid climates, condensation on heat exchangers and in drain pans creates a breeding ground for mould and bacteria. This biological growth not only produces musty odours but also forms a biofilm that insulates surfaces and reduces heat transfer efficiency. Dust mites thrive in the same conditions, adding another allergen load to the air.
When particles and biological contaminants accumulate, the first symptom is a rise in pressure drop across the filter. Fans must work harder to maintain airflow, which increases energy consumption and noise. In air purifiers, reduced airflow means fewer air exchanges per hour and lower clean air delivery rate. In HVAC systems, a clogged filter allows particles to pass through and foul downstream coils, leading to higher maintenance costs and potential compressor overload.
Biological growth adds a second layer of load. Mould and bacteria on coils and in ducts can cause corrosion and produce volatile organic compounds that degrade indoor air quality. For vehicle cabin filters, the same mechanisms apply: dust and soot from traffic block the filter, while bacteria and mould in the evaporator core create odours each time the air conditioning is switched on.
Celrith flat antibacterial HEPA filters combine a high-density pleated HEPA layer with an antibacterial and antiviral treatment. The HEPA media intercepts fine particles including PM2.5, pollen, pet dander and smoke particles. The antibacterial layer is designed to kill and inhibit influenza A virus, E. coli and Staphylococcus aureus, reducing the microbial load on the filter and downstream surfaces. In addition, the filter achieves a mite removal rate of up to 82.4% according to FZ/T 01100-2008, tested and certified by a national authority.
The flat, ultra-thin design allows the filter to fit into compact air purifiers and vehicle purifiers where depth is limited. Unlike bulky cylindrical or box filters, the flat format can be customised in length, width and thickness to match existing housings, making it suitable for OEM and ODM projects. The pleated structure provides a large surface area in a small footprint, extending service life while maintaining low initial resistance.
| Item | Detail |
|---|---|
| Product name | Flat Anti-bacterial HEPA Filter (composite HEPA with antibacterial/antiviral function) |
| 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, Staphylococcus aureus |
| Mite removal efficiency (test standard) | Mite removal rate up to 82.4% (according to FZ/T 01100-2008, tested and certified by a national authority) |
| Main end applications | Household air purifiers, vehicle 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 production services for different length, width, thickness and filtration efficiency combinations. |
| Quality certification system | Produced in 20,000 m² cleanrooms, certified to IATF 16949 and ISO 9001, ensuring automotive-grade product consistency. |
This filter is used by manufacturers of household air purifiers, vehicle air purifiers and fresh-air air-conditioning systems that require both particulate filtration and antimicrobial protection. It is also specified for medical sterilization equipment and maternal and infant health appliances, where control of microorganisms is a priority. OEM and ODM customers integrate the flat filter into new or existing product platforms, benefiting from custom dimensions and efficiency grades that match their airflow and pressure drop targets.
Celrith operates a 50,000 m² manufacturing plant in Zhongshan, Guangdong, China, including six cleanrooms totalling 20,000 m² where HEPA filters are produced. The company holds ISO 9001, ISO 14001 and ISO 45001 certifications, and in 2024 obtained IATF 16949 automotive quality management certification. Products comply with REACH and RoHS environmental regulations, and compliance documents are available upon request. The in-house laboratory is CNAS-accredited and can issue test reports for filtration efficiency, dust holding capacity and pressure drop. With more than 20 years of experience in filtration and exports to Europe, the US, Japan and South Korea, Celrith supports OEM/ODM projects with custom sizes, structures, media grades, frame materials, logos and packaging, and has developed over 1,000 filtration solutions.
To receive a tailored quotation, please provide the following details: your device or vehicle model, required filter dimensions or a drawing, target airflow or water flow (if applicable), operating conditions such as temperature and humidity, and estimated order quantity. Our technical team will respond with a recommendation and pricing. Contact us to start the conversation.
It captures PM2.5, pollen, pet dander, cigarette particles and microbial aerosols, and it inhibits influenza A virus, E. coli and Staphylococcus aureus. It also achieves a mite removal rate of up to 82.4% according to FZ/T 01100-2008. These functions are combined in a single flat pleated filter.
By trapping particles at the filter surface, it prevents them from fouling coils, fans and ducts downstream. The antibacterial layer reduces microbial growth that can cause odours and biofilm. This helps maintain airflow and reduces maintenance frequency.
Yes. Celrith offers full OEM/ODM customisation of length, width, thickness and filtration efficiency. We can also adjust media combination and packaging to match your product. Provide your specifications and our team will propose a solution.
Replacement intervals depend on operating conditions such as dust load and running hours. We recommend monitoring pressure drop or following your appliance manufacturer's guidance. For typical household use, a replacement every 6 to 12 months is common, but we can advise based on your specific application.
Standard samples can be provided within 3-5 working days, while custom samples typically take 7-15 working days depending on complexity. Sample fees are refundable against bulk orders. We encourage thorough testing before production.
Standard specifications have an MOQ of 500-1,000 pieces, and custom specifications usually require 2,000-3,000 pieces. Lead time is 25-35 days after order confirmation. For large or long-term orders, we can arrange VMI库存 plans to shorten delivery.
Each batch undergoes appearance and dimension checks, initial pressure drop test, filtration efficiency test (0.3 μm DOP/PAO), scan leak test, antibacterial performance sampling and flammability test. Reports are issued by our CNAS-accredited laboratory. Third-party inspection can be arranged upon request.
The factory is certified to ISO 9001, ISO 14001, ISO 45001 and IATF 16949. Products comply with REACH and RoHS, and we can provide compliance documentation. The CNAS laboratory supports filter performance verification.