This gas filter box is a high-efficiency HEPA filter and respirator cartridge from Zanxis, designed to remove PM0.3 particles at ≥99.99% efficiency while adsorbing and neutralising VOCs. It is intended for clinical ventilators, anaesthesia circuits, industrial respirators and high-specification air purification or oxygen generation equipment. Zanxis manufactures it under medical GMP and offers full customisation to your drawings.
| Item | Detail |
|---|---|
| Product name | High-efficiency HEPA filter / ventilator filter / respirator cartridge |
| Core filter media | High-precision PTFE microporous membrane / glass fibre / composite activated carbon |
| Core performance | Dual action: removal of PM0.3 particles (efficiency ≥ 99.99%) plus adsorption and neutralisation of harmful VOCs |
| Available grades | HEPA H13/H14 through ULPA U15 and above; washable versions available |
| Main applications | Clinical ventilators, anaesthesia circuits, industrial respirators / positive-pressure respirators, high-specification fresh-air purification and oxygen generation |
| Dimensions | Tooling and production fully to customer drawings; housing in medical-grade ABS/PC; sealing ring by ultrasonic welding with medical silicone for leak-free assembly |
| Certification | Filter efficiency verified by the company's CNAS-accredited testing centre; company holds medical GMP, IATF 16949, ISO 14001 and ISO 45001 certificates |
Before a design freeze, we recommend agreeing the following values in writing. The headline figure is PM0.3 removal efficiency ≥ 99.99%. The test aerosol, flow rate and upstream concentration should be stated on the report so that the result can be compared with your device requirements. Pressure drop at your operating flow is equally important for ventilator circuits, because it affects trigger sensitivity and work of breathing; we measure resistance on the same test bench as efficiency.
For the activated carbon layer, confirm the target VOC list and the challenge concentration. The service life then depends on gas concentration, flow and duty cycle. If the filter will be washed, confirm the number of wash cycles and the efficiency retention after washing. For the housing, confirm the ABS or PC grade, the silicone sealing ring and the connector geometry. The technical file should also record REACH and RoHS compliance, which Zanxis can supply as documents.
The filter combines a PTFE microporous membrane, glass fibre and composite activated carbon in one cartridge. The PTFE layer provides the particle barrier, while the carbon layer adsorbs VOCs. The housing is injection-moulded in medical-grade ABS or PC, and the sealing ring is medical silicone joined by ultrasonic welding so that the assembly remains leak-free.
The cartridge is used in clinical ventilator and anaesthesia breathing circuits, in industrial respirators and positive-pressure respirators, and in fresh-air purification and oxygen generation equipment. Because tooling follows customer drawings, dimensions, connector type and mounting features can be matched to existing devices. Washable versions are available where the application allows cleaning and re-use; the validated wash count should be confirmed during sample approval. Zanxis holds more than 20 years of filter development experience and has built over 1,000 filter solutions, which shortens the path from drawing to production sample.
Zanxis operates its own laboratory accredited by CNAS, which issues test reports covering filter efficiency, dust holding capacity and resistance. These reports are the primary documents for design verification and for comparing batches. Quality control runs through IQC for incoming materials, IPQC during production and OQC before shipment, so that each batch can be traced.
The company holds IATF 16949 (obtained in 2024), ISO 9001, ISO 14001 and ISO 45001 certificates, and manufactures medical products under GMP. The plant covers 50,000 m², including six clean workshops totalling 20,000 m², which supports clean assembly and packaging of ventilator filters. Multiple automated production lines give a monthly capacity of several million pieces. Products meet REACH and RoHS requirements, and compliance documents are available on request. Zanxis is located in Zhongshan, Guangdong, China, and has exported to Europe, the United States, Japan and South Korea for more than 20 years.
To receive samples and test reports, please send your device or vehicle model, the required dimensions or a drawing, the airflow or water flow, the operating conditions (temperature, humidity, VOC exposure) and the quantity you expect to order. Our team will reply with a sample plan and a quotation. Contact Zanxis to start the verification process.
Yes. Zanxis issues test reports from its CNAS-accredited laboratory covering efficiency, dust holding capacity and resistance. These reports are provided with samples so that you can compare the measured values with your specification.
Standard samples are shipped within 3–5 working days. Custom samples that require tooling are typically completed in 15–30 days. Each sample is accompanied by its test report.
The MOQ for standard specifications is usually 1,000 pieces. For customised products, the MOQ is evaluated separately based on tooling and filter media configuration.
Batch lead time is normally 25–35 days after order confirmation. Urgent orders can be scheduled with priority in the clean workshops. Raw material stock at the Zhongshan headquarters supports shorter replenishment for long-term customers.
For clinical ventilator use, single-use models are replaced after each patient, and reusable models every 24–72 hours. In home ventilator settings, 1–3 months is typical. The actual interval depends on flow, environment and VOC load; we can provide life test data to support your schedule.
The gas filter box is available in HEPA H13/H14 and ULPA U15 and above. PM0.3 removal efficiency is ≥99.99% for the high-efficiency configuration. Washable versions are also offered, with the validated wash count confirmed during sample approval.
Quality control covers IQC for incoming materials, IPQC during production and OQC before shipment. Each batch is tested and comes with a report, and production takes place in six clean workshops totalling 20,000 m² under GMP.
Please provide your device model, dimensions or drawing, airflow, operating conditions and expected quantity through our contact page. We will respond with a sample plan and a quotation. <a href="/en/contact">Contact us</a> to proceed.