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This cylindrical HEPA filter is a 360° intake air filter that captures fine dust and allergens in household air purifiers, commercial fresh-air systems, car cabin purifiers and high-end vacuums. Ranveth pairs high-throughput PP, PP+PET composite nonwoven and PTFE media in a layered build, so each grade is matched to the particle size and airflow resistance your device can handle. It is made for appliance brands and OEM buyers who need a filter that fits a specific cavity and performs predictably over its service life.
The filter is built around a 360° cylindrical core, which lets air enter from every side and supports a higher clean air delivery rate for a given fan speed. What sits on that core is a deliberate pairing of media: a high-throughput PP layer for dust holding, a PP+PET composite nonwoven where mechanical strength and pleat stability matter, and PTFE where fine-particle capture and low resistance are the priority. These materials are not interchangeable; each brings a different balance of efficiency, pressure drop and dust capacity.
On the outside and inside of the cylinder, Ranveth can laminate a pre-filter mesh or an activated carbon layer. The pre-filter takes the coarse dust load first, which protects the HEPA layer and extends service life; the carbon layer adds gas and odour control without changing the filter’s footprint. Because the layers are selected as a system, a buyer can tune the same basic cylinder for a mid-efficiency pre-stage or a high-efficiency HEPA stage, depending on what the end product is designed to achieve.
The practical result of this pairing is a filter whose efficiency, airflow resistance and life are set at the design stage rather than adjusted later. A denser media stack raises capture efficiency but also raises resistance; a more open stack lowers resistance and raises dust holding capacity. Ranveth’s approach is to start from your device’s airflow and target efficiency, then choose the media and layer order that meet both without overbuilding the filter.
| Item | Detail |
|---|---|
| Product name | Cylindrical HEPA Filter for air purifiers |
| Core materials | High-throughput PP (polypropylene), PP+PET composite nonwoven, PTFE (polytetrafluoroethylene) |
| Filtration performance | Customisable from medium-efficiency to HEPA grade to suit the end product; captures fine airborne dust and allergens |
| Structure | 360° cylindrical design; inner and outer layers can be combined with a pre-filter mesh or activated carbon layer as required |
| Dimensions | Fully custom; any diameter and height can be produced to match the purifier cavity |
| Typical applications | Household air purifiers, commercial fresh-air systems, car air purifiers, high-end vacuum cleaners and similar environmental appliances |
| Factory certifications | ISO 9001, ISO 14001, ISO 45001; US EPA; European BSCI; IATF 16949 certified factory supply |
The cylindrical format is common in appliances where space is tight and airflow is radial. In household air purifiers, the 360° intake helps raise CADR while keeping the unit compact. In commercial fresh-air systems, the same filter can be specified at a higher efficiency grade to protect downstream components and occupied spaces. Car air purifiers and high-end vacuum cleaners use the cylinder because it fits around a motor or fan housing and can be sealed with a simple end cap.
Because dimensions are fully custom, the filter can be made to match an existing cavity rather than forcing a redesign. Buyers typically choose the media grade based on the particle size they need to capture and the static pressure their fan can overcome. Where odours or volatile organic compounds are a concern, an activated carbon layer can be added to the same cylinder.
To quote a custom cylindrical HEPA filter, Ranveth needs a small set of inputs. The more precise they are, the faster the sample and quotation process.
With these details, our team can recommend a media combination and layer order, then produce a sample for your bench testing.
Ranveth’s media choices are test-backed. Our in-house laboratory is CNAS-accredited and issues reports on filtration efficiency, dust holding capacity and resistance, so the layer build we propose for your filter can be verified before mass production.
Production takes place in a 50,000 m² plant in Zhongshan, Guangdong, China, which includes six cleanrooms with a combined area of 20,000 m². Cleanroom assembly helps prevent secondary contamination of HEPA media during converting and finishing.
The factory holds IATF 16949 certification, obtained in 2024, and operates ISO 9001, ISO 14001 and ISO 45001 systems. Quality control follows IQC, IPQC and OQC stages, and products meet REACH and RoHS requirements with compliance documents available on request.
With more than 20 years of filtration R&D and manufacturing experience, Ranveth has developed over 1,000 filtration solutions and exports to Europe, the US, Japan and South Korea. OEM/ODM support covers size, structure, media grade, frame material, logo and packaging.
If you are evaluating a cylindrical HEPA filter for a new appliance or replacing an existing supply, send your device model, size or drawing, airflow or water flow requirement, operating conditions and quantity. We will respond with a media recommendation, sample plan and quotation. You can reach the team through our contact page.
It uses high-throughput PP, PP+PET composite nonwoven and PTFE media, arranged in a 360° cylindrical layer build. The inner and outer layers can also be combined with a pre-filter mesh or activated carbon layer. The exact combination is selected to match your target efficiency and airflow resistance.
Ranveth customises the filter from medium-efficiency to HEPA grade to suit the end product. Efficiency, dust holding capacity and resistance are tested in our CNAS-accredited in-house laboratory, and reports can be provided. The final grade is set by the media pairing chosen for your device.
Yes. Dimensions are fully custom, and we can produce any diameter and height to match your purifier cavity. Send a drawing, sample or cavity dimensions and our team will confirm the fit. Pre-filter and carbon layers can be added without changing the cylinder’s footprint.
We support samples for bench testing and market validation. Standard samples are typically sent within 3–5 working days, while custom samples generally take 7–15 working days depending on complexity. Sample fees and freight can be discussed, and sample costs are often refundable against bulk orders.
The MOQ for standard cylindrical HEPA filters is usually 1,000 pcs; custom MOQs depend on tooling complexity and are agreed separately. Bulk orders typically ship in 25–35 days. We recommend planning ahead during peak season.
Replacement depends on ambient air quality, running hours and pre-filter configuration. In normal household or commercial use, a 6–12 month interval is typical; high-load industrial environments should be changed based on pressure-drop monitoring. We can supply dust holding data to help set a replacement reminder for your product.
It is used in household air purifiers, commercial fresh-air systems, car air purifiers, high-end vacuum cleaners and similar environmental appliances. The 360° intake supports higher CADR in compact units. Where odour control is needed, an activated carbon layer can be combined in the same cylinder.
Please send your device or vehicle model, size or drawing, target airflow or water flow, operating conditions and order quantity. With these inputs we can recommend a media combination and provide a sample plan and quotation. You can submit details through our <a href="/en/contact">contact page</a>.
