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お問い合わせ Oltaven gas filter boxes are high-efficiency HEPA filters designed for ventilators, anesthesia machines, and industrial respirators. They combine PTFE or glass-fiber media with activated…
FILTER MEDIA / ROLLS · SHEETS · DIE-CUT
Oltaven gas filter boxes are high-efficiency HEPA filters designed for ventilators, anesthesia machines, and industrial respirators. They combine PTFE or glass-fiber media with activated carbon to capture PM0.3 particles at ≥99.99% efficiency and adsorb VOCs. These finished filters are built for medical device makers and industrial safety equipment OEMs who need reliable, custom filtration.
A filter’s performance is not decided by the media alone. Media choice sets the upper limit, but pleating, framing, and sealing determine how much of that potential you actually get in the finished product. A tightly pleated PTFE membrane can stop particles smaller than 0.3 microns, but if the pleats are uneven or the frame is weak, air will bypass the media or the filter will collapse under pressure. That is why Oltaven sells finished filters, not just rolls of media. We control every step—from selecting the right PTFE or glass-fiber sheet or activated carbon layer, to forming the pleats, bonding the frame, and sealing the filter box—so the efficiency, resistance, and capacity you specify are the ones you receive.
Three factors decide how a finished gas filter box performs: media selection, pleating, and sealing. Media selection sets the filtration efficiency and the type of contaminants removed. For medical and industrial breathing applications, we use high-precision PTFE membrane, glass fiber, or composite activated carbon to achieve ≥99.99% removal of PM0.3 and effective adsorption of VOCs. The forming process—pleating and framing—determines resistance and capacity. More pleats mean more surface area, which lowers airflow resistance and increases dust holding capacity. However, pleats must be spaced and supported correctly to prevent media damage during use. Framing provides structural strength and a precise fit; we offer injection-molded housings in medical-grade ABS or PC, or custom frames per drawing. Sealing is equally critical. A finished filter box must have a continuous, airtight seal between the media pack and the frame, and between the frame and the device. We use medical-grade silicone ultrasonic welding for sealing rings to ensure no leakage. Finally, every finished filter is tested in our CNAS-accredited lab for efficiency, resistance, and seal integrity before shipment.
Oltaven gas filter boxes are used in clinical ventilators and anesthesia machine circuits to protect patients and equipment from airborne particles and gases. In industrial settings, they serve in gas masks and positive-pressure respirators, removing harmful vapors and particulates. They are also used in high-specification fresh-air purification systems and oxygen concentrators where both particle and gas-phase filtration are required. Because we control the entire manufacturing process, we can adapt the filter box to fit specific device interfaces, airflow rates, and efficiency targets. Whether you need a disposable filter for single-patient use or a washable cartridge for longer service intervals, we can supply a finished product that meets your specification.
| Item | Detail |
|---|---|
| Product name | High-efficiency HEPA filter / ventilator filter cartridge |
| Core filter materials | High-precision PTFE (microporous membrane) / glass fiber / composite activated carbon |
| Core purification performance | Dual effect: precise removal of PM0.3 particles (efficiency ≥ 99.99%) + efficient adsorption and neutralization of VOCs |
| Filter grades available | From HEPA H13/H14 to ULPA U15 and above; washable versions available |
| Main applications | Clinical ventilators, anesthesia machine circuits, industrial gas masks/positive-pressure respirators, high-specification fresh-air purification, and oxygen concentrators |
| Custom dimensions | Molded to customer drawings; medical-grade ABS/PC housings; medical silicone ultrasonic welded seals |
| Certifications | CNAS-accredited lab testing; medical products GMP; IATF 16949; ISO 14001; ISO 45001 |
Oltaven is a filter manufacturer with over 20 years of experience and a strong record in OEM/ODM projects. We have developed more than 1,000 filtration solutions for clients worldwide.Our in-house CNAS-accredited laboratory allows us to test filter efficiency, resistance, and seal integrity on site. We are certified to IATF 16949 (2024), ISO 9001, ISO 14001, and ISO 45001. Our products comply with REACH and RoHS, and we can provide the necessary compliance documents. This combination of scale, cleanliness, and testing capability ensures that every gas filter box we ship meets the specified performance and safety requirements.
This structured workflow ensures clear communication and reliable results from concept to mass production.
To discuss your custom gas filter box requirements, please contact us. Provide the device or vehicle model, required dimensions or drawings, airflow or water flow rates, operating conditions, and estimated quantity. Our team will respond with a tailored proposal. Contact Oltaven to begin.
Resistance depends on the media type, pleat density, and seal quality. A filter with more pleats has more surface area and lower resistance, but if pleats are too tight, airflow can be restricted. Our gas filter boxes are designed with optimized pleat geometry and tested in our CNAS lab to balance efficiency and resistance for your specific application.
An OEM project begins with your inquiry, including device model, required efficiency, airflow, and operating conditions. We then design and prototype a filter box to your specifications, test it in our lab, and provide samples for approval. After validation, we proceed to tooling and mass production. Our team supports you throughout the process.
Our gas filter boxes achieve at least 99.99% removal of PM0.3 particles, meeting HEPA H13/H14 standards, and can be configured with activated carbon for VOCs. We also offer ULPA grades up to U15 for higher efficiency requirements. Efficiency is verified in our CNAS-accredited laboratory.
Yes, we fully customise dimensions, housing material, seal type, and filter media to match your device. We mold housings in medical-grade ABS or PC and use medical silicone ultrasonic welding for airtight seals. Simply provide your drawings or specifications, and we will engineer a solution.
We provide samples for evaluation; standard samples ship in 3-5 business days, while custom samples take 15-30 days. Quotations are based on your specifications, quantity, and customization requirements. Contact us with your details for a prompt quote.
For standard gas filter boxes, the MOQ is typically 1,000 pieces. Customised products have MOQs that depend on tooling and material configuration. We can discuss your needs and find a suitable arrangement.
Bulk orders are usually delivered 25-35 days after order confirmation. For urgent needs, we can prioritise production in our cleanrooms. We maintain sufficient raw material inventory to support timely delivery.
Replacement intervals depend on usage and environment. For medical ventilators, single-use filters should be replaced after each patient, while reusable types typically last 24-72 hours; home ventilator filters usually need replacement every 1-3 months. We can provide specific guidance based on your device parameters and regulatory requirements.