Composite PTFE filtration material is composite of a thin film that contains a large number of micropores and extremely high porosity made from polytetrafluoroethylene particles with biaxial stretching process and other filtration material as boning. It has more stable chemical properties, more even fiber distribution, higher efficiency and lower air resistance and has become an irreplaceable material in certain high-end filtration sector.

Composite PTFE filtration material is able to reach HEPA and ULPA efficiency at low air resistance and is the first choice in high-end air filtration sector.
Filters with this material have clear advantages:
Boron silicon free, no volatile, no dust, no secondary pollution
Low energy consumption, saving more than 40% energy in average 
In compliance with UL900 standard
Excellent water repellency 
Washable, reusable