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The Jyntrel Dust Filter Box (HEPA Grade) is an inline filter box for ventilator, anaesthesia-machine and respirator air paths, built to remove PM0.3 particles at ≥ 99.99% while also adsorbing VOCs. It is made for medical device makers, home-care equipment brands and industrial respirator assemblers who need a defined air path with predictable pressure behaviour. Jyntrel supplies the box to your drawing, with moulded housings and a welded silicone seal.
In a ventilator circuit, the filter box sits where ambient air is drawn in and must reach the patient cleanly. The airflow is steady at low volume but continuous over long sessions, and the box has to hold its efficiency as the blower cycles. In an industrial positive-pressure respirator or gas mask, the same box faces higher velocity and a more loaded dust stream. Both cases put the PTFE microporous membrane, glass fibre layer and activated carbon medium in series, so the box manages particles and VOCs in one pass rather than in two separate units.
Because the housing is welded, the air path is closed along the seam. That matters where a leak would move unfiltered air into the breathing stream. The box is rated for the pressure the circuit imposes; the exact differential must be confirmed against your blower curve, so share that curve with us before specification.
The filter medium is a high-precision PTFE microporous membrane combined with glass fibre and composite activated carbon. The membrane provides the particle barrier, targeting PM0.3 at ≥ 99.99% removal, while the carbon layer adsorbs VOCs. The product family covers HEPA H13 and H14 grades, so a buyer can specify the grade that matches the device class rather than oversizing the filter.
Dual function is the practical point: one box, one pressure drop, two removal duties. For ventilator intake and for high-specification fresh-air and oxygen-generation equipment, that simplifies the housing and the maintenance step. The box is not a sterilising device; it filters the air stream and nothing more.
Jyntrel moulds the housing to your drawing. The shell can be non-toxic ABS or PC, and the seal is a medical silicone ring joined by ultrasonic welding. Dimensions, inlet and outlet geometry, and the mounting interface are all set by your drawing, so the first step is to send it.
To quote accurately we need: the device or vehicle model, the size or drawing, the rated airflow, the operating temperature and humidity, the dust or VOC load, and the order quantity. With those inputs we can propose the HEPA grade, the carbon loading and the housing material, then confirm the pressure drop at your duty point. Customisation extends to logo printing and packaging; Jyntrel has developed more than 1000 filter solutions, so a new mould is a routine project rather than a one-off.
| Item | Detail |
|---|---|
| Product name | HEPA ventilator filter / respirator cartridge (dust filter box) |
| Core media | High-precision PTFE microporous membrane, glass fibre and composite activated carbon |
| Filtration performance | Dual action: PM0.3 particle removal at ≥ 99.99%, plus VOC adsorption |
| Grade options | HEPA H13 and H14 elements |
| Typical applications | Clinical ventilator and anaesthesia circuits, industrial gas masks and positive-pressure respirators, high-specification fresh-air and oxygen-generation equipment |
| Dimensions | Moulded to customer drawing |
| Housing and seal | Non-toxic ABS or PC shell; medical silicone seal joined by ultrasonic welding |
| Verification and systems | Filter efficiency verified at the in-house CNAS laboratory; manufacturing under medical products GMP, IATF 16949, ISO 14001 and ISO 45001 |
In each case the box is selected by airflow and contaminant load, not by device category alone. Two devices of the same class can need different grades if their blowers differ.
Jyntrel runs multiple automated production lines with output of millions of pieces per month, which supports supply stability for programme orders. The company has more than 20 years of filter development and manufacturing experience and has exported to Europe, the United States, Japan and Korea for over 20 years.
The production base covers 50,000 m², including six clean rooms totalling 20,000 m². The in-house laboratory holds CNAS accreditation and verifies filter efficiency, dust holding capacity and resistance. Jyntrel was certified to IATF 16949 in 2024 and holds ISO 9001, ISO 14001 and ISO 45001. Products meet REACH and RoHS requirements, with compliance documents available. Quality control runs through IQC, IPQC and OQC, and the plant is located in Zhongshan, Guangdong, China.
Send the device or vehicle model, the size or drawing, the rated airflow or water flow, the operating conditions and the quantity you expect. Our engineers will match the grade and housing and return a quotation. Contact us to start the specification.
The PTFE membrane and glass fibre media are rated for PM0.3 removal at ≥ 99.99%. The product family also includes H13 and H14 elements, so the exact grade for your device is set during selection.
The box is built for both low-volume ventilator draw and the higher velocity of positive-pressure respirators. Because pressure drop rises with airflow, we confirm the resistance at your blower's duty point before quoting.
Send the rated airflow, the operating temperature and humidity, the dust or VOC load, and the expected quantity. A blower curve or device model helps us fix the grade and the housing geometry.
Yes. The housing is moulded to your drawing, in non-toxic ABS or PC, with a medical silicone seal joined by ultrasonic welding. Send the drawing or a sample and we will confirm the interface.
Sample policy follows the product quotation, so ask your Jyntrel contact when you send the operating data. We confirm the sample route together with the drawing review and the grade proposal.
MOQ and lead time are confirmed per project with the quotation, because both depend on whether a new mould is needed. Share your annual volume and we will set the schedule.
Replacement follows the dust and VOC load of your application and the pressure drop your device tolerates, so we set the interval with you at specification. The carbon layer saturates gradually, so change-out is usually driven by resistance rise rather than a fixed date.
Send the device or vehicle model, size or drawing, airflow, operating conditions and quantity through our <a href="/en/contact">contact page</a>. Our team will respond with a grade proposal and quotation.