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Teflon waterproof and breathable membrane has many characteristics such as excellent high and low temperature resistance, acid and alkali resistance, anti-aging, oxidation and weather resistance, electrical ins…

Generally speaking, the filters of fresh air systems are divided into three levels: primary effect filter, medium effect filter, and high efficiency filter. From G1 to H13, the higher the level, the better the …

The high-efficiency filter determines the purification efficiency. The high-efficiency filter is HEPA. A filter that meets the HEPA standard can filter most dust above 0.3 microns. Currently, all high-efficienc…

The pore size of the polytetrafluoroethylene microporous membrane is small and the distribution is concentrated, which can better prevent fine dust from entering the filter material, just like a first layer of …

HEPA was born in the three-year “Manhattan Project” in the United States in the 1940s. In the “Manhattan Project”, in order to prevent the spread of radioactive pollutants in the air, sc…

Using the unique node fibrillarity, smooth surface, chemical resistance, breathable and impermeable, large air permeability, flame retardant, high temperature resistance, strong acid and alkali resistance, non-…

Because the expanded polytetrafluoroethylene (PTFE) microporous membrane has a special fibrous microporous structure, when the micropore size is properly controlled, it can physically block viruses and PM2.5 ha…

The surface morphology of PTFE microporous film has a spider web-like microporous structure. Pores are formed between the microfibers, and the arrangement direction of the microfibers is basically parallel to t…

Using the pore-forming properties of polytetrafluoroethylene plastic resin, it is a microporous film made by biaxial stretching method. The surface of the membrane can reach more than one billion micropores per…