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Thesvin ultra high-efficiency filters are mini-pleat panel filters rated U15 to U17, designed to remove 0.1–0.3 μm particles at efficiencies up to 99.999995% (MPPS). They are used in semiconductor cleanrooms, pharmaceutical GMP areas, hospital operating rooms, and high-end commercial HVAC systems or FFU units. This page explains how the filter fits and seals, what it filters, and how to specify the right size for your unit.
Thesvin ultra high-efficiency filters are built around the interface between the filter frame and the host unit or duct. The frame is made from anodised aluminium profile or stainless steel, and the mini-pleat pack is separated by hot-melt adhesive. The 50 mm or 70 mm depth matches common FFU and ceiling grid profiles, so the filter sits flush without adapters. The frame’s squareness and flat gasket surface allow gasket or gel-seal engagement, and the rigid aluminium or stainless steel frame resists deflection under airflow. For non-standard grids, we can customise dimensions and frame material to your drawing.
These filters use glass fibre or PTFE media to capture sub-micron particulates. The mini-pleat design increases media area within a thin profile, giving low resistance and energy savings while maintaining U15–U17 efficiency. Typical targets include airborne particles in semiconductor fabrication, lithium battery material production, nuclear ventilation, and biopharmaceutical cleanrooms. The filter is not intended for liquid filtration or high-temperature flue gas; for those, please consult our team.
| Item | Detail |
|---|---|
| Product type | High-efficiency mini-pleat panel filter (no separator) |
| Core material | Glass fibre or PTFE |
| Frame material | Anodised aluminium profile or stainless steel |
| Separator | Hot-melt adhesive |
| Efficiency class | U15 to U17 (covering medium to ultra-high efficiency levels) |
| Typical applications | Microelectronics and semiconductor cleanrooms, pharmaceutical GMP workshops, hospital operating rooms, high-end commercial building HVAC systems, FFU units |
| Standard sizes and airflow (W × H × D) | 305 × 610 × 50 mm (rated airflow 350 CMH) 610 × 610 × 50 mm (rated airflow 750 CMH) 1170 × 570 × 50 mm (rated airflow 1300 CMH) 1170 × 1170 × 70 mm (rated airflow 3600 CMH) More sizes available with 50 mm or 70 mm thickness options |
| Customisation | Non-standard sizes and OEM service supported by our 20,000 m² clean workshop and CNAS-accredited testing centre |
Every Thesvin ultra high-efficiency filter is manufactured in a facility holding IATF 16949 (since 2024) and ISO 9001, ISO 14001, and ISO 45001 certifications. IQC, IPQC, and OQC controls run throughout production to maintain dimensional consistency. Our CNAS-accredited laboratory can issue test reports for efficiency, dust holding capacity, and resistance. The 50,000 m² plant includes 20,000 m² of clean workshops for contamination-free assembly. Products comply with REACH and RoHS, and we have exported to Europe, the US, Japan, and Korea for over 20 years.
To get a precise quote, please provide: device or vehicle model, required size or drawing (or send an old part), airflow or water flow, operating conditions (temperature, humidity, corrosive gases), and estimated quantity. Our team will respond with a specification and price. Contact us to start your inquiry.
Our standard sizes range from 305 × 610 × 50 mm to 1170 × 1170 × 70 mm, and we can customise dimensions to match your unit. Check your filter slot dimensions and send us a drawing or old part for confirmation.
Thesvin ultra high-efficiency filters are rated U15 to U17, with MPPS efficiencies of 99.9995%, 99.99995%, and 99.999995% respectively. They capture 0.1–0.3 μm particles, suitable for semiconductor and pharmaceutical cleanrooms.
Yes. You can send us an old filter or a clear photo with dimensions, and our engineers will match or improve the design. This helps ensure fit and performance.
Standard sizes typically have an MOQ of 50–100 pieces, while custom sizes usually start at 100–200 pieces. Standard products ship in 7–15 days; custom orders take about 25–35 days.
Under normal conditions, replacement is typically every 3–5 years, depending on pre-filtration and dust load. Monitor pressure drop and replace when it reaches 2–2.5 times the initial resistance.
Yes. Each filter is tested for efficiency, resistance, and seal integrity, and can be supplied with a report from our CNAS-accredited laboratory. We also provide compliance documents for REACH and RoHS.
Yes. We offer aluminium or stainless steel frames, glass fibre or PTFE media, and custom sizes. OEM/ODM services are available, including logo and packaging.
Send us your device model, required size or drawing, airflow, operating conditions, and quantity via our contact page. Our team will respond with a detailed quotation.