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Contactez-nous The Oltaven cylindrical HEPA filter is a finished air filter built for air purifiers and similar appliances, using high-flow PP, PP/PET composite nonwoven, or PTFE media to capture fine…
FILTER MEDIA / ROLLS · SHEETS · DIE-CUT
The Oltaven cylindrical HEPA filter is a finished air filter built for air purifiers and similar appliances, using high-flow PP, PP/PET composite nonwoven, or PTFE media to capture fine dust and allergens. It filters airborne particles and can be customised from medium-efficiency to HEPA grades to match your device's requirements. It is designed for manufacturers and brands of household air purifiers, commercial fresh-air systems, car air purifiers, and high-end vacuum cleaners who need a reliable, custom-fit filter solution.
A filter's performance is not set by the media alone. The same sheet of HEPA-grade material can become a low-resistance, high-capacity filter or a restrictive, short-life filter depending on how it is pleated, framed, and sealed. At Oltaven, we sell finished filters, not just media. That means we control every step that turns raw material into a reliable component: pleat geometry, end-cap design, seal integrity, and optional pre-filter or carbon layers. The result is a cylindrical filter that fits your device, meets your target efficiency, and delivers the airflow your product needs.
Pleating increases the media area within a compact cylinder, which lowers face velocity and resistance while raising dust-holding capacity. Framing and sealing ensure that air passes through the media rather than bypassing it, and that the filter holds its shape under pressure. These choices are made in our factory, where we can adjust them to your specifications and verify the outcome in our CNAS-accredited laboratory.
Three factors determine how a finished cylindrical HEPA filter performs in your device: media choice, pleating and forming, and sealing and framing.
Media choice. High-flow PP is economical and suitable for medium-efficiency applications. PP/PET composite nonwoven offers a balance of efficiency and dust capacity. PTFE provides high efficiency with low resistance and is often chosen for HEPA grades. Oltaven can customise efficiency from medium to HEPA (H11 to H14) based on your end-product requirements.
Pleating and forming. The number and depth of pleats, the spacing between them, and the way the media is wound into a cylinder all affect resistance and capacity. More pleats mean more media area, which generally lowers resistance and increases dust holding, but the pleat design must avoid nesting or blockage. Our production lines are set up to produce consistent pleat geometry for each custom size.
Sealing and framing. End caps and sealant prevent air bypass. The choice of end-cap material and sealant must match the media and the operating conditions. Our cylindrical design allows inner and outer layers to be combined with a pre-filter mesh or activated carbon layer as needed. All these elements are specified per project and validated in our lab.
Because we control these variables, we can help you balance efficiency, resistance, and capacity for your specific device. Whether you need higher CADR, longer replacement intervals, or a compact fit, the finished filter is engineered as a system.
Oltaven cylindrical HEPA filters are used in household air purifiers, commercial fresh-air systems, car air purifiers, and high-end vacuum cleaners. The 360-degree cylindrical design allows full radial airflow, which can help increase CADR in purifiers. The high dust-holding capacity helps reduce replacement frequency, and the customisable efficiency ensures compliance with different market requirements. For devices that need additional odour or gas removal, we can combine the HEPA layer with activated carbon or other functional layers.
| Item | Detail |
|---|---|
| Product name | Cylindrical HEPA filter for air purifiers |
| Materials | High-flow PP (polypropylene), PP+PET composite nonwoven, PTFE (polytetrafluoroethylene) |
| Efficiency | Customisable from medium-efficiency to HEPA, effectively removing airborne fine dust and allergens |
| Structure | 360-degree cylindrical design; inner and outer layers can be combined with a pre-filter mesh or activated carbon layer as needed |
| Dimensions | Fully customisable; any diameter and height can be produced to match the customer's purifier cavity |
| Applications | Household air purifiers, commercial fresh-air systems, car air purifiers, high-end vacuum cleaners, and other environmental purification appliances |
| Certifications | ISO 9001, ISO 14001, ISO 45001; US EPA, European BSCI; IATF 16949 certified factory direct supply |
Oltaven brings over 20 years of filter development and manufacturing experience to every project. We have developed more than 1,000 filtration solutions, and our OEM/ODM capability covers size, structure, media grade, end-cap material, logo, and packaging customisation. Our 50,000 m² plant includes six cleanrooms totaling 20,000 m², where HEPA filters are produced in a controlled environment to avoid secondary contamination.
Our in-house laboratory is CNAS-accredited and can issue test reports for efficiency, dust-holding capacity, and resistance. We are certified to ISO 9001, ISO 14001, and ISO 45001, and we obtained IATF 16949 automotive quality management certification in 2024. Our products comply with REACH and RoHS environmental regulations, and we can provide compliance documents. Quality control follows IQC, IPQC, and OQC throughout production. We have been exporting to Europe, the US, Japan, and Korea for over 20 years, and our multiple automated production lines support monthly capacity of millions of pieces.
To move forward, please tell us your device or vehicle model, the size or a drawing, the airflow or water flow (if applicable), operating conditions, and estimated quantity. Our team will respond with a tailored proposal. Contact Oltaven to discuss your filter requirements and how we can support your product.
Resistance depends on media type, pleat geometry, and seal integrity. A filter with more pleats has more media area and generally lower resistance. Oltaven optimises these factors for your target airflow, and we can verify performance in our CNAS lab.
We customise efficiency from medium-efficiency to HEPA (H11 to H14), with HEPA grades capturing fine particles and allergens. The exact efficiency is set by the media and construction we select for your project. We provide test reports from our CNAS-accredited lab.
Yes. We produce any diameter and height to match your purifier cavity, and we can add pre-filter mesh or activated carbon layers. You can send a drawing or sample for reverse development. Our OEM/ODM service covers size, structure, media, end caps, logo, and packaging.
It starts with your specifications: device model, dimensions or drawing, target efficiency, airflow, and operating conditions. We then propose a solution and provide samples for testing. After approval, we confirm MOQ and schedule production.
Standard samples ship in 3–5 working days; custom samples typically take 7–15 working days. Sample costs and shipping can be discussed, and sample fees are often refundable with bulk orders. Quotes are based on your specifications and quantity.
Standard models typically have an MOQ of 1,000 pcs; custom MOQ is negotiable based on complexity. Bulk orders generally ship in 25–35 days. We have mature supply chain and in-house tooling to support flexible scheduling.
Replacement depends on air quality, runtime, and pre-filter configuration. In typical household or commercial use, we recommend 6–12 months; industrial high-load environments may require replacement based on pressure drop monitoring. We can provide dust-holding data to help set replacement intervals.
They are widely used in household air purifiers, commercial fresh-air systems, car air purifiers, high-end vacuum cleaners, and other purification appliances. The 360-degree design supports high CADR and dust capacity. We can combine HEPA with activated carbon or other functional layers for integrated filtration.