EN
Celrith’s round HEPA filter element is a circular filter for handheld vacuums, robot cleaners, mattress vacuums and wet-dry vacuums. It captures fine dust, PM2.5, dust mites, pollen and hair from the airstream before they are exhausted back into the room. It is designed for appliance makers and aftermarket brands that need a washable PTFE filter with low airflow resistance.
Instead of letting particles build up in the motor and exhaust path, the filter holds them in the media and keeps suction strong over time.
Every vacuum cleaner handles a dirty airstream. The dust box collects the visible debris, but the fine fraction—particles around 0.3 μm, PM2.5, dust mite allergens, pollen and pet dander—passes through coarse screens and can be blown back into the room. For allergy-sensitive users, that exhaust is the main complaint: the floor looks clean, but the air carries the same irritants the vacuum just picked up.
Odour is a second issue. Organic dust and hair trapped in the dust cup create smells that a standard mesh filter does not address. Celrith’s round HEPA filter is built to stop those particles at the filter media, so the exhaust air is cleaner than the air that entered the vacuum.
Contaminants do not only affect indoor air; they also load the vacuum itself. Fine dust that escapes the filter can coat the motor, increase friction and raise operating temperature. Over time, a clogged or inefficient filter forces the motor to work harder, which shortens runtime on battery-powered models and can lead to overheating protection or premature motor wear.
A filter that balances particle capture with low airflow resistance protects both the motor and the battery. The right media holds dust without strangling suction, so the appliance keeps its performance between cleanings.
Celrith uses high-precision PTFE microporous membrane, composite PP meltblown, or antibacterial-treated filter paper as the core media. The PTFE option is washable: it can be rinsed and reused, which suits aftermarket filters and appliances designed for maintenance rather than throw-away cartridges. The high-porosity structure keeps airflow resistance low while maintaining a high dust-holding capacity.
The filter is built in a round shape to match the cyclone and dust-cup geometry of handheld vacuums and robot cleaners. Celrith offers 100% customisation of the outer frame and dimensions to fit the device’s air path, including eco-friendly injection-moulded frames and rubber sealing rings for airtight closure. That prevents dust bypass and keeps the filter seated during vibration and drops.
For brands that want odour control, an optional activated carbon layer can be combined with the HEPA media. The filter can also be supplied with custom logo, colour box and instruction manual as part of the OEM package.
| Item | Detail |
|---|---|
| Product name | Vacuum cleaner filter element / robot vacuum filter (round shape) |
| Core filter media | High-precision PTFE (microporous membrane) / composite PP (polypropylene meltblown) / antibacterial-treated filter paper |
| Core purification function | Captures PM2.5, dust mites, pollen and hair from the dust cup; prevents secondary exhaust contamination |
| Physical and flow properties | High-porosity breathable design, low operating airflow resistance, high dust-holding capacity, helps prevent motor overheating and improves battery runtime |
| Main end applications | Handheld cordless vacuums, smart robot cleaners, mattress mite removers, wet-dry vacuums, car mini vacuums |
| Outer frame and dimension customisation | 100% customised to the device air path and dust cup; eco-friendly injection-moulded frame, rubber sealing ring edge for airtight closure |
| Company certification system | 50,000 m² production base and CNAS-accredited testing centre; ISO 9001, ISO 14001 and IATF 16949 quality management systems |
Celrith’s round filter is used by vacuum cleaner brands, aftermarket filter suppliers and appliance OEMs. Typical applications include handheld cordless vacuums, robot vacuum cleaners, mattress mite removers, wet-dry floor cleaners and car mini vacuums. It suits both original equipment programmes and replacement-filter ranges where a washable PTFE option is preferred.
Because the filter is customised to the device, it is also a fit for brands that need a specific diameter, thickness or pleat count to match an existing model. Celrith has developed more than 1,000 filter solutions and can work from a sample or drawing to match a target appliance.
Celrith manufactures in Zhongshan, Guangdong, China, at a 50,000 m² production base that includes six cleanrooms totalling 20,000 m². The company holds ISO 9001, ISO 14001 and ISO 45001 system certifications, and has been IATF 16949 certified since 2024. Products comply with REACH and RoHS environmental regulations, and compliance documents can be provided.
Testing is carried out in a CNAS-accredited laboratory that can issue reports on filtration efficiency, dust-holding capacity and airflow resistance. Quality control covers IQC, IPQC and OQC across the production flow, and multiple automated lines support monthly output in the millions of pieces. With more than 20 years of filter development and manufacturing experience, Celrith has exported to Europe, the United States, Japan and Korea for over 20 years.
To quote the right filter for your appliance, please share the device or vehicle model, the size or a drawing, the airflow requirement, the operating conditions and your target quantity. If you are still in development, tell us the dust cup dimensions and the motor power so we can recommend a media and frame combination.
Send your requirements through our contact page and our team will respond with a specification proposal and sample options.
It captures PM2.5, dust mites, pollen, hair and other fine particles from the vacuum airstream before they reach the exhaust. This helps prevent secondary contamination of indoor air. An optional activated carbon layer can be added for odour control. The filter is designed for handheld vacuums, robot cleaners and similar appliances.
Celrith’s round HEPA filter can reach H11 to H13 efficiency, with ≥99.95% filtration of 0.3 μm particles at the H13 level. Efficiency depends on the selected media and configuration, so the exact grade is confirmed with the sample or drawing. CNAS-accredited laboratory testing can verify filtration efficiency, dust-holding capacity and airflow resistance.
Yes. Celrith offers 100% customisation of the outer frame and dimensions to match the device air path and dust cup. Options include eco-friendly injection-moulded frames, rubber sealing rings for airtight closure, different media grades and an activated carbon layer. Custom logo, colour box and instruction manual are also available for OEM orders.
Share the device model, size or drawing, airflow requirement, operating conditions and target quantity through our contact page. For standard stock items, 1–3 samples can be provided free of charge, with the customer covering international courier costs. Custom samples are subject to a sampling fee that is deducted from the bulk order. Quotations are prepared after the specification is confirmed.
For standard specifications, the MOQ is typically 3,000 pieces. For custom tooling or new moulds, the MOQ is generally 5,000 pieces and depends on the specific design. MOQ is confirmed together with the quotation after the filter specification is agreed.
Standard orders are delivered 25–35 days after order confirmation. Peak season or large-volume orders may require earlier production scheduling, so we recommend confirming the schedule in advance. Multiple automated lines and raw material stock support stable delivery for repeat orders.
For typical household use, replacement is recommended every 3–6 months. Celrith offers two options: a non-washable glass-fibre HEPA for higher efficiency, and a washable PTFE or modified PP version that can be rinsed and reused for 6–12 months. The choice depends on the target market and appliance design, and usage instructions are included on the packaging.
Yes. The high-porosity media is designed for low airflow resistance, which helps prevent motor overheating and supports longer battery runtime. High dust-holding capacity means the filter holds more particles before clogging, so suction stays strong between cleanings. Actual performance depends on the appliance and operating conditions; we can recommend a media grade for your motor and dust cup.