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The kn95 mask filter membrane is made of polytetrafluoroethylene as raw material. It is expanded and stretched to form a microporous film. This film is coated on various fabrics and substrates using a special p…

By comparing the corresponding testing standards of kn95 and n95 masks, it can be found that the requirements for key indicators such as particle filtration efficiency, breathing resistance, and exhalation valv…

Medical masks are divided into ordinary medical masks, medical surgical masks and medical protective masks. Ordinary medical masks are not required to have a blocking effect on blood and have no tightness requi…

The composite material molding process is the foundation and condition for the development of the composite materials industry. With the expansion of the application fields of composite materials, the composite…

The kn95 mask is based on the Chinese standard GB2626-2006 “Respiratory Protective Equipment Self-priming Filtering Anti-Particulate Respirator”. The filter elements are divided into two categories:…

The PTFE composite material uses micropores and non-stickiness to make the dust penetration rate close to zero. It provides the highest filtration efficiency after being put into use. When the filtered matter d…

PTFE composite material has a very high filtration efficiency, which is at least 3 to 5 times higher than that of traditional filter materials. The filtration efficiency for ≥0.1μm smoke is ≥99.99%; and its ser…

In the state of water vapor, the water particles are very small, and these water particles can penetrate all the way down the capillary to the other side, causing vapor permeability. If water vapor condenses in…

The performance of polytetrafluoroethylene composite material is excellent. Its filtration method is membrane surface filtration, which can intercept nearly 100% of the filtered materials. Coated filter cloth i…