HE-IL
The Thesvin panel high-efficiency filter is a pleated, frame-mounted air filter designed to slot into cleanroom ceiling grids, FFU fan filter units, laminar flow hoods and clean transfer windows. It removes fine particulate down to 0.3 μm at efficiencies up to 99.99% and above, depending on grade. It is built for semiconductor fabs, microelectronics assembly, pharmaceutical cleanrooms, hospital operating theatres and high-spec commercial HVAC systems. Thesvin manufactures it in Zhongshan, Guangdong, China, with dimensional consistency controlled through IATF 16949 and IQC/IPQC/OQC processes.
Fitment starts with the frame. Thesvin supplies the panel filter in an anodised aluminium profile or stainless steel frame, with hot-melt adhesive as the pleat separator. The frame face is dimensioned to match the host filter housing, ceiling grid or FFU inlet so that the filter seats squarely and seals against the gasket face. Because the panel is a rigid, self-supporting cartridge, it locates on the frame rather than relying on the filter media for structural stiffness. This matters where the filter is changed from below or where access is limited to one face.
Where the host device uses a gel-seal channel, Thesvin can supply a compatible interface on request; where the housing uses a knife-edge or flat gasket face, the frame can be prepared to suit. The critical dimensions are the overall width, height and depth, plus the frame flange and seal geometry. Thesvin works from a drawing or an old part, so the replacement matches the existing opening without adapters. This is the practical basis of fitment: confirm the opening size, confirm the seal type, confirm the depth available behind the face, then confirm the airflow direction.
The panel high-efficiency filter captures airborne particles in the 0.3 μm range and finer, using pleated glass fibre or PTFE media. It is applied as terminal filtration in ISO Class 1–7 cleanrooms, including wafer fabrication, photolithography areas, chip packaging and microelectronics assembly. It is also used in FFU units, clean transfer windows and laminar flow hoods, where the filter is the last barrier before air enters the critical zone. In pharmaceutical and food processing areas, it supports GMP cleanroom operation; in hospitals, it serves operating theatres and other controlled spaces; in commercial HVAC, it upgrades final filtration where standard filters are not sufficient.
The table below lists the facts confirmed for this product. Dimensions, media grade and frame material are customised to the application, so the final values are fixed against a drawing or sample.
| Item | Detail |
|---|---|
| Product name | Thesvin panel high-efficiency filter |
| Product category | High-efficiency filter (panel type) |
| Filter media | Glass fibre or PTFE, selected to the required efficiency grade |
| Frame material | Anodised aluminium profile or stainless steel; other frame options on request |
| Pleat separator | Hot-melt adhesive |
| Efficiency grades | H13 and H14 available; filtration efficiency for 0.3 μm particles can reach 99.99% and above; selected models reach ULPA U15/U16 |
| Typical applications | Semiconductor cleanrooms (ISO Class 1–7), FFU units, clean transfer windows, laminar flow hoods, pharmaceutical GMP areas, hospital operating theatres, commercial HVAC |
| Customisation | Dimensions, frame material, media grade, sealant type and pleat separator configured to drawing or operating condition |
| Quality control | IQC, IPQC and OQC through the production flow; efficiency, scan-leak and resistance testing at the CNAS-recognised laboratory |
| Origin | Manufactured in Zhongshan, Guangdong, China |
Thesvin holds IATF 16949 certification, obtained in 2024, and applies IQC, IPQC and OQC control to keep dimensions consistent from batch to batch. Incoming media and frame materials are inspected before release to production; in-process checks follow the pleating, sealing and frame assembly steps; outgoing inspection confirms the finished dimensions and test record before packing. The CNAS-recognised laboratory can issue reports for filtration efficiency, dust-holding capacity and resistance, and each high-efficiency filter is tested for efficiency, scan-leak and resistance before it leaves the factory.
The production base covers 50,000 m², including six cleanrooms totalling 20,000 m², where the panel filters are assembled in a controlled environment. Thesvin operates under ISO 9001, ISO 14001 and ISO 45001 management systems, and products meet REACH and RoHS requirements with compliance documents available. With more than 20 years of filter development and manufacturing experience and more than 1,000 filter solutions developed, Thesvin supports OEM/ODM work covering dimensions, structure, media grade, frame material, logo and packaging.
To move from specification to quotation, send the device or vehicle model, the size or a drawing, the required airflow or water flow, the operating conditions and the quantity. If a drawing is not available, send the old part or clear photos with dimensions; Thesvin will work from that. Start here: contact Thesvin.
Fitment depends on the opening width, height and depth, the seal type at the frame face and the airflow direction. Thesvin supplies an anodised aluminium or stainless steel frame built to your drawing or old part, so the panel seats in the existing housing without adapters. Send the dimensions and a photo of the current filter in place and Thesvin will confirm the interface before quoting.
Yes. An old part or clear photos with measured dimensions are enough to start. Thesvin measures the frame, seal face and depth, then returns a drawing for approval before production. The approved drawing becomes the reference for repeat orders.
Thesvin supplies H13 and H14 grades, with filtration efficiency for 0.3 μm particles reaching 99.99% and above. Selected models reach ULPA U15/U16. The required grade is fixed against the application and confirmed on the datasheet; each filter is tested for efficiency, scan-leak and resistance at the CNAS-recognised laboratory.
Yes. Dimensions, frame material (anodised aluminium profile or stainless steel), media (glass fibre or PTFE), sealant type and pleat separator are configured to your drawing or operating condition. Thesvin provides OEM/ODM service covering dimensions, structure, media grade, frame material, logo and packaging.
Samples can be produced for fit check before a production order. To quote, Thesvin needs the device or vehicle model, size or drawing, airflow, operating conditions and quantity. Send these through the contact page and the team will respond with a drawing and quotation.
For standard specifications the MOQ is generally 50–100 pieces; custom specifications usually start at 100–200 pieces depending on structural complexity, and sample orders can be negotiated. Standard stock items ship in 7–15 days, while custom production orders typically take 25–35 days.
Service life is typically 1–3 years, depending on air cleanliness, face velocity, pre-filter arrangement and daily operating hours. In normal semiconductor cleanroom operation, replacement is recommended when the final resistance reaches twice the initial resistance or the design final resistance. Thesvin can recommend a pre-filter arrangement to extend terminal filter life.
Send the device or vehicle model, size or drawing, airflow or water flow, operating conditions and quantity through the contact page. If you have an old part, include photos and dimensions. Thesvin will confirm fitment and return a drawing and quotation for your review.