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The Celrith conical HEPA filter is a replacement filter element for handheld vacuums, robot vacuums, and other cordless cleaning appliances. It captures fine particles such as PM2.5, dust mites, pollen, and hair from the airstream before they can be exhausted back into the room. It is designed for appliance brands, OEM/ODM buyers, and maintenance suppliers who need reliable filtration performance and custom fit.
Every vacuum cleaner pulls in more than visible debris. Fine dust, allergens, and microscopic particles pass through coarse screens and can be released back into the air through the exhaust. Over time, these contaminants accumulate in the dust cup and motor area, reducing suction and putting extra strain on the motor. For allergy sufferers and anyone concerned about indoor air quality, the filter is the last line of defence.
Celrith conical filters are built to intercept these particles at high efficiency. The filter media is rated H11 to H13, capturing ≥99.95% of particles at 0.3 μm. This means that dust mites, pollen, and PM2.5 are trapped rather than recirculated. The conical pleated design increases the effective surface area, allowing high dust holding capacity while maintaining low airflow resistance – so the motor does not have to work harder to maintain suction.
When a filter clogs, the motor draws more current to compensate, which can lead to overheating, reduced battery runtime, and premature wear. In handheld vacuums, where battery life is critical, airflow resistance directly affects performance. A filter that is too restrictive or that loads quickly will degrade the user experience and may shorten the appliance's service life.
Celrith addresses this by using high-porosity filter media that maintains low resistance even as it captures dust. The pleated cone shape provides a large filtration area in a compact space, so pressure drop stays low throughout the filter's life. This helps protect the motor, extend battery runtime, and keep suction strong until the filter needs replacement.
Celrith offers two filter media options to match different product positioning. The standard HEPA filter is not washable and delivers higher filtration precision for single-use applications. The washable variant uses a special composite media that can be rinsed and reused 10–30 times, depending on cleaning habits and dust load. Both options are available in H11, H12, and H13 efficiency grades.
Customisation is a core strength. We manufacture the conical filter to your exact dimensions, pleat count, end-cap material (PU, plastic, or rubber), and seal ring specification. Whether you need a 1:1 match for an existing model or a new design, our engineering team can develop a filter that fits your device's airflow path and dust cup perfectly. We also offer a range of packaging options, including colour boxes, blister packs, neutral packaging, and custom logo printing.
For robotic vacuums and other high-volume appliances, we can incorporate antimicrobial treatment into the filter media to inhibit bacterial growth and odour. All filters are produced in cleanroom environments to prevent secondary contamination during manufacturing.
| Item | Detail |
|---|---|
| Product name | Vacuum cleaner filter element / robot vacuum filter |
| Core filter media | High-precision PTFE (microporous membrane) / composite PP (polypropylene melt-blown) / antimicrobial filter paper |
| Core filtration function | Captures fine particles (PM2.5), dust mites, pollen, hair, etc. from the dust cup; prevents secondary exhaust pollution |
| Physical fluid characteristics | High-porosity breathable design, very low airflow resistance, high dust holding capacity, helps prevent motor overheating, extends battery runtime |
| Main end applications | Handheld cordless vacuums, smart robot vacuums, mattress mite removers, wet-dry vacuums, car mini vacuums |
| Frame and dimension customisation | 100% custom manufacturing to match device airflow path and dust cup dimensions. Eco-friendly injection-moulded frame, rubber sealing ring edge treatment for 100% airtightness and no dust leakage |
| Corporate certification system | Company operates a 50,000 m² modern production base and a CNAS-accredited testing centre. Strictly implements ISO 9001, ISO 14001, and IATF 16949 international quality management system standards |
Celrith conical filters are specified by appliance brands and OEM/ODM buyers who need reliable filtration for handheld vacuums, robot vacuums, and other cordless cleaning devices. They are also used by maintenance and aftermarket suppliers who require consistent fit and performance across replacement cycles. Whether you are launching a new vacuum model or sourcing filters for an existing product line, we can tailor the filter to your device.
Celrith products comply with REACH and RoHS environmental regulations, and we can provide the relevant compliance documents. Our quality and environmental management systems are certified to ISO 9001, ISO 14001, and ISO 45001, and our automotive quality management system is certified to IATF 16949 (achieved in 2024). These certifications reflect our commitment to consistent quality and responsible manufacturing.
Our in-house CNAS-accredited laboratory can issue test reports for filtration efficiency, dust holding capacity, and airflow resistance, supporting your product validation and certification submissions. The 50,000 m² production base includes 20,000 m² of cleanrooms across six workshops, where filters are manufactured under controlled conditions to prevent contamination. With over 20 years of filtration experience and more than 1,000 filtration solutions developed, we have the expertise to meet your specifications. Our location in Zhongshan, Guangdong, China, provides efficient access to global markets.
To receive a quotation or discuss a custom filter project, please provide the following details: your device or vehicle model (if applicable), required dimensions or a drawing, target airflow or water flow rate, operating conditions (e.g., dust type, temperature, humidity), and estimated quantity. Our team will respond promptly with a tailored proposal. Contact us today to start the conversation.
It captures fine particles such as PM2.5, dust mites, pollen, and hair from the vacuum's airstream. With H11–H13 efficiency, it removes ≥99.95% of particles at 0.3 μm, preventing them from being exhausted back into the room.
The high-porosity media and conical pleated design maintain low airflow resistance, so the motor does not have to work as hard to maintain suction. This helps prevent motor overheating and extends battery runtime, keeping performance consistent as the filter loads with dust.
Yes, we offer a washable variant that can be rinsed and reused 10–30 times, depending on cleaning habits and dust load. A non-washable HEPA option is also available for higher filtration precision in single-use applications.
In typical household use, we recommend replacement every 3–6 months, depending on usage frequency and dust levels. Washable filters can extend the interval, but should be replaced when suction noticeably drops or the media shows wear.
Yes, we provide full OEM/ODM customisation, including conical dimensions, pleat count, filter media grade (H11/H12/H13), end-cap material, and seal ring specifications. We can match your drawing or sample 1:1 to ensure perfect fit.
For standard specifications, the MOQ is typically 3,000 pieces. For custom tooling, the MOQ is generally 5,000 pieces, depending on the specific design. Standard lead time is 25–35 days after order confirmation, and we recommend early scheduling for peak seasons or large volumes.
Yes, we provide free samples for standard stock items (you cover the shipping cost). Custom samples may incur a development fee, which is refundable upon mass production. Our CNAS-accredited lab can supply test data on filtration efficiency, airflow resistance, and dust holding capacity.