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Celrith cylindrical HEPA filters are designed for air purifiers, fresh-air systems and other purification appliances. They capture airborne fine dust and allergens, and can be combined with a pre-filter or activated carbon layer to handle odours and gases. The filters suit household, commercial and vehicle applications, and are fully customizable in diameter, height and efficiency grade to fit your device.
Air purifiers face a constant challenge: fine particles such as dust, pollen, pet dander and smoke that are small enough to remain suspended and penetrate deep into the respiratory system. These contaminants not only reduce indoor air quality but also accumulate inside the appliance, coating fans, sensors and heat exchangers. Over time, this buildup can impair performance, increase energy consumption and shorten the life of the equipment. In environments with cooking fumes, vehicle exhaust or industrial emissions, odours and gaseous pollutants add another layer of complexity. Addressing these contaminants requires a filtration solution that combines high particle capture efficiency with the ability to handle volatile organic compounds when needed.
When particulate matter is not effectively removed, it imposes a growing burden on the entire system. Fans must work harder to maintain airflow as filters clog, leading to higher energy use and increased noise. Sensors that rely on clean airflow can drift, causing inaccurate readings and inefficient operation. In HVAC and fresh-air systems, dirty filters can lead to coil fouling, reduced heat exchange efficiency and even microbial growth in damp conditions. For vehicle cabins, the accumulation of dust and allergens compromises passenger comfort and can trigger allergic reactions. In industrial settings, inadequate filtration can damage sensitive equipment and affect product quality. The cost of these problems—both in maintenance and downtime—far exceeds the cost of a well-matched filter.
Celrith cylindrical HEPA filters address these challenges through a combination of materials and design. The core filter media are high-throughput polypropylene (PP), PP+PET composite nonwoven and PTFE, selected for their ability to capture fine particles while maintaining low airflow resistance. The cylindrical, 360-degree design allows air to enter from all sides, increasing the effective filtration area and improving the clean air delivery rate (CADR) for a given fan power. This configuration also provides high dust holding capacity, which extends the service interval and reduces the frequency of replacement.
The filters can be configured with an integrated pre-filter layer or an activated carbon layer to tackle odours and gaseous pollutants, making them suitable for environments where both particles and gases are present. Celrith offers customizable efficiency grades from medium-efficiency to HEPA, with standard options covering H11 to H14. For HEPA grades, filtration efficiency for 0.3 μm particles can reach up to 99.995% (H14). All filters are produced in cleanroom environments and tested in a CNAS-accredited laboratory to verify performance. The cylindrical format is available in any diameter and height to match your device's cavity, ensuring a precise fit and optimal sealing.
| Item | Detail |
|---|---|
| Product name | Cylindrical HEPA Filter for air purifiers |
| Materials | High-throughput PP (polypropylene), PP+PET composite nonwoven, PTFE (polytetrafluoroethylene) |
| Filtration efficiency | Customizable from medium-efficiency to HEPA grade, effectively removes fine dust and allergens; standard H11 to H14, with H14 achieving up to 99.995% for 0.3 μm particles |
| Structure | 360-degree cylindrical design; inner and outer layers can be combined with a pre-filter mesh or activated carbon layer as required |
| Dimensions | Fully customizable to any diameter and height to fit the purifier cavity |
| Core applications | Household air purifiers, commercial fresh-air systems, vehicle air purifiers, high-end vacuum cleaners and other environmental purification appliances |
| Production certifications | ISO 9001, ISO 14001, ISO 45001; U.S. EPA, European BSCI, IATF 16949 certified factory direct supply |
Celrith cylindrical HEPA filters are used by manufacturers and brands of household air purifiers, commercial fresh-air systems, vehicle air purifiers and high-end vacuum cleaners. They are also suitable for medical clean spaces, laboratory equipment, industrial dust removal and electronics manufacturing cleanrooms. Because the filters can be customized in size, efficiency and additional functional layers, they serve both standard product lines and specialized applications requiring tailored filtration. OEM and ODM customers value the flexibility to specify dimensions, media, end-cap materials and packaging to match their exact requirements.
Celrith products are manufactured in a facility that holds ISO 9001, ISO 14001 and ISO 45001 certifications. The products comply with REACH and RoHS environmental regulations, and compliance documents are available upon request. The factory has achieved IATF 16949 automotive quality management system certification (obtained in 2024). The in-house laboratory is accredited by CNAS (China National Accreditation Service for Conformity Assessment) and can issue test reports for filtration efficiency, dust holding capacity and resistance. The production base covers 50,000 m², including six cleanrooms totaling 20,000 m², ensuring HEPA filters are made in a contamination-controlled environment. With over 20 years of experience in filtration R&D and manufacturing, Celrith has developed more than 1,000 filtration solutions and exports to Europe, the United States, Japan and South Korea. Multiple automated production lines support a monthly capacity of millions of pieces. Quality control follows IQC, IPQC and OQC processes at every stage.
To receive a tailored quotation or to discuss your filtration needs, please provide the following details: your device or vehicle model, the required filter size or a drawing, the target airflow or water flow (if applicable), operating conditions (temperature, humidity, contaminants present), and the estimated quantity. Our team will respond promptly with recommendations and pricing. Contact us to start the conversation.
It captures airborne fine dust and allergens, such as pollen, pet dander and smoke particles. When combined with an activated carbon layer, it can also reduce odours and gaseous pollutants. The filter is available in efficiency grades from medium-efficiency to HEPA (H11 to H14).
Standard options cover H11 to H14. For H14, filtration efficiency for 0.3 μm particles can reach up to 99.995%. Efficiency can be customized to match your terminal product requirements.
Yes, full customization is supported. You can specify any diameter and height to fit your purifier cavity, choose the filtration grade, select filter media, and add a pre-filter or activated carbon layer. End-cap materials and packaging can also be tailored.
Samples are available for testing and validation. Standard stock samples are typically shipped within 3–5 working days; customized samples take 7–15 working days depending on complexity. Sample fees and shipping can be negotiated, and sample costs are often refundable with bulk orders. For a quote, please provide your device model, required size or drawing, airflow, operating conditions and estimated quantity.
The MOQ for standard cylindrical HEPA filters is typically 1,000 pieces. For customized filters, MOQ depends on tooling complexity. Bulk order lead time is generally 25–35 days; during peak seasons, we recommend planning ahead.
Replacement interval depends on ambient air quality, operating hours and pre-filter configuration. In typical household or commercial use, we recommend replacement every 6–12 months. In industrial high-load environments, replace based on pressure drop monitoring. We can provide dust holding capacity data and life assessment to help set replacement reminders.
The manufacturing facility is certified to ISO 9001, ISO 14001 and ISO 45001, and has achieved IATF 16949 (2024). Products comply with REACH and RoHS, and compliance documents are available. The in-house CNAS-accredited laboratory can provide test reports for efficiency, dust holding capacity and resistance.