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Contact This is an ultra high-efficiency particulate air (ULPA) filter from Oltaven, built as a finished mini-pleat panel filter with a glass fiber or PTFE medium and a frame in anodized aluminum…
FILTER MEDIA / ROLLS · SHEETS · DIE-CUT
This is an ultra high-efficiency particulate air (ULPA) filter from Oltaven, built as a finished mini-pleat panel filter with a glass fiber or PTFE medium and a frame in anodized aluminum or stainless steel. It removes 0.1–0.3 μm particles at U15–U17 efficiency (EN 1822). It is for OEMs and facility teams in semiconductor, pharmaceutical, hospital, HVAC and FFU applications who need a filter whose media, pleating, frame and sealing are already engineered and tested as one unit.
Filter media sets the ceiling; the finished filter decides how close you get to it. A glass fiber or PTFE sheet can have high efficiency on a test bench, but once it is pleated, framed and sealed, the result depends on how evenly the pleats open, how the frame holds them and how the adhesive seals the edges. Oltaven sells the finished filter, not the media alone, because that is where efficiency, resistance and dust capacity are actually settled.
Pleating controls surface area. Tight, uniform pleats pack more medium into a 50 mm or 70 mm depth, lowering face velocity and resistance for the same airflow. Framing controls rigidity. An anodized aluminum or stainless steel frame keeps the pack square under pressure, so bypass and pleat collapse are less likely. Sealing controls leakage. Hot melt adhesive bonds the pleat tips and edges to the frame, closing the paths that would otherwise let unfiltered air slip past.
Three finished-filter choices drive the numbers on the datasheet: media grade, pleat geometry and frame/seal integrity. Media grade sets the efficiency class (U15, U16 or U17) and the starting resistance. Pleat geometry sets how much air the same footprint can carry. Frame and seal integrity set whether the rated efficiency holds in service. Change any one and the finished filter’s efficiency, resistance and capacity move together.
That is why two filters of the same 610 × 610 × 50 mm size can behave differently. One may use a thinner pleat pack with fewer folds; another may use a denser pack with hot melt sealing that keeps every pleat open. The first may show lower resistance but less dust capacity; the second may show higher initial resistance but longer service life. Neither is automatically better; the right balance depends on the airflow, the upstream pre-filtration and the cleanliness target of the room or unit.
These filters are used where fine particles must be controlled at the terminal point: microelectronics and semiconductor cleanrooms, pharmaceutical GMP workshops, hospital operating rooms, high-end commercial HVAC systems and FFU units. In energy and metal smelting, they appear in lithium battery material production areas, photovoltaic wafer and cell cleanrooms, nuclear power ventilation and exhaust systems, rare metal refining and powder metallurgy exhaust cleaning, and gas turbine intake end filtration. Each case uses the same finished-filter logic: match media, pleat and frame to the particle load and airflow, then verify the assembly.
| Item | Detail |
|---|---|
| Product type | High-efficiency mini-pleat panel filter (separator-less) |
| Core media | Quality glass fiber or PTFE |
| Frame material | Anodized aluminum profile or stainless steel |
| Separator | Quality hot melt adhesive |
| Efficiency class | U15–U17 (covering medium to ultra-high efficiency levels) |
| Typical applications | Microelectronics and semiconductor cleanrooms, pharmaceutical GMP workshops, hospital operating rooms, high-end commercial HVAC systems, FFU units |
| Standard sizes and airflow (W × H × D) | 305 × 610 × 50 mm (rated airflow 350 CMH); 610 × 610 × 50 mm (750 CMH); 1170 × 570 × 50 mm (1300 CMH); 1170 × 1170 × 70 mm (3600 CMH). More sizes available with 50 mm or 70 mm depth options. |
| Customisation | Non-standard sizes and OEM service based on the company’s 20,000 m² clean workshop and CNAS national testing centre |
Oltaven is an OEM/ODM filter manufacturer with more than 20 years of experience and over 1,000 filter solutions developed. The production base covers 50,000 m², including six cleanrooms totalling 20,000 m², where finished filters are assembled. A CNAS-accredited laboratory issues test reports for efficiency, dust capacity and resistance. The company holds IATF 16949 (obtained in 2024) and ISO 9001, ISO 14001 and ISO 45001 system certifications, and products meet REACH and RoHS requirements with compliance documents available. The address is Zhongshan, Guangdong, China.
To move from requirement to finished filter, send us your device or vehicle model, size or drawing, airflow or water flow, operating conditions and quantity. Our team will respond with a specification proposal and next steps. Contact Oltaven to start the conversation.
Resistance comes from the finished assembly, not the size alone. Pleat count, pleat depth, media grade and how evenly the hot melt adhesive holds the pleats open all change the open area and the air path. Two 610 × 610 × 50 mm filters can therefore show different initial resistance even though their outer dimensions match.
Pleating sets the surface area available for capture, and framing keeps the pack square so air cannot bypass the medium. Uniform pleats and a rigid anodized aluminum or stainless steel frame help the finished filter hold its rated U15–U17 efficiency in service, rather than only on the media test bench.
Yes. Oltaven supports non-standard sizes and OEM service, with frame options in anodized aluminum profile or stainless steel and media in glass fiber or PTFE. Standard depths are 50 mm and 70 mm; share your drawing or target dimensions and we will confirm feasibility.
It starts with your application data: device or vehicle model, size or drawing, airflow or water flow, operating conditions and quantity. We then propose media, pleat and frame choices, and you can approve samples before bulk production. Use the inquiry link to send these details.
For this product, standard sizes typically start at 50–100 pieces, and custom structures usually start at 100–200 pieces depending on complexity; sample and trial orders can be discussed flexibly. Standard items ship in 7–15 days, while custom bulk orders usually take 25–35 days.
Under normal conditions the service life is generally 3–5 years, depending on pre-filtration, airborne dust concentration and running hours. Replace when the final resistance reaches 2–2.5 times the initial resistance, and use periodic leak testing to confirm integrity. A three-stage system (G4 pre-filter + F8/F9 medium filter + U15/U16 final filter) helps extend life.
Each unit is tested at the CNAS-accredited laboratory for efficiency, resistance and seal integrity, and can be supplied with a unique test report. The company also provides REACH and RoHS compliance documents and operates IQC, IPQC and OQC checks through production.
Send your device or vehicle model, size or drawing, airflow or water flow, operating conditions and quantity through our contact page. We will reply with a specification proposal, sample options and a quotation. <a href="/en/contact">Contact Oltaven</a> to begin.