Cylindrical HEPA Filter for Air Purifiers and Ventilation Systems

The Jyntrel cylindrical HEPA filter is a 360° pleated cartridge that captures fine dust and allergens from the air stream in household air purifiers, commercial fresh-air units, vehicle cabins and high-end vacuums. It is built for OEM and ODM programmes that need a defined efficiency class and a housing-matched footprint. The filter media are high-flux PP, PP+PET composite nonwoven and PTFE, selected to suit the duty cycle of your device.

Operating Conditions and Airflow Path

Air enters the cylindrical filter radially through the full 360° surface and passes through the pleated media before leaving via the open core. Because the entire circumference is active, face velocity is kept low relative to the airflow, which supports a higher clean air delivery rate (CADR) in compact purifier housings. The media pack is chosen to balance initial resistance against the pressure budget of your fan curve.

In new-air systems, the filter sees steady airflow for long periods, so dust-holding capacity drives replacement intervals. In vehicle and portable appliances, airflow is intermittent and vibration is present; a robust pleat pack and bonded end construction help maintain shape under those cycles. For environments with coarse debris, an upstream pre-filter layer can be combined to shield the HEPA media and extend service life.

Relative humidity and temperature should be checked against the media selected. PTFE media are suited to humid air streams, while PP and PP+PET composites are typically used in dry indoor air. Share the operating envelope with our engineers so the construction can be matched to the application.

Core Performance

Efficiency is customisable from medium-efficiency grades up to HEPA class, with standard coverage from H11 to H14 and up to 99.995% filtration efficiency for 0.3 μm particles. The 360° design increases the usable filtration area, which raises CADR and dust-holding capacity, so replacement frequency can be reduced in comparable housings. All filters are tested at our CNAS-accredited laboratory for efficiency, resistance and dust-holding capacity, and test reports can be supplied with the order.

Selection and Customisation: the Data We Need

Because every appliance cavity is different, the cylindrical filter is made to order in any diameter and height. To recommend the right media and pleat geometry, we ask for the following:

• Device or vehicle model and the available space, with a drawing or sample if possible.
• Target airflow rate and the fan or blower curve.
• Required efficiency class and any pre-filter or activated carbon layer.
• Operating environment: temperature, humidity, dust load and duty cycle.
• Estimated annual quantity and packaging requirements.

With these inputs, Jyntrel can propose a construction and provide samples for bench testing before production tooling is committed.

Parameters

Typical Applications

The filter is used in household air purifiers where a compact cartridge must deliver high CADR, in commercial fresh-air systems that require a defined HEPA stage, in vehicle air purifiers where vibration resistance matters, and in high-end vacuum cleaners where fine dust retention is critical. It can also be specified for laboratory equipment and electronics workshops when the efficiency class and airflow are matched to the installation.

Manufacturing and Testing at Jyntrel

Jyntrel operates multiple automated production lines with a monthly capacity of millions of pieces, backed by more than 20 years of export experience to Europe, the United States, Japan and Korea. The 50,000 m² plant includes six clean rooms totalling 20,000 m², where HEPA filters are assembled to limit contamination. Our CNAS-accredited laboratory issues test reports for efficiency, dust-holding capacity and resistance, and the factory holds IATF 16949 (2024), ISO 9001, ISO 14001 and ISO 45001. IQC, IPQC and OQC checks run throughout production, and REACH and RoHS compliance documents are available. The company is based in Zhongshan, Guangdong, China.

Share Your Operating Conditions

To receive a tailored solution, please send us your device or vehicle model, the required size or a drawing, the target airflow, the operating conditions and your estimated quantity. Our engineers will respond with a proposed construction and sample plan. Contact Jyntrel to start the conversation.