The dust layer formed by the ptfe filter material of children’s masks is easy to crack and rot, and the filter material has good air permeability. Since the coated filter material relies on a thin film to capture dust particles, the dust layer can only form on the outside of the filter material film, and the film is hydrophobic The adhesion between the dust layer and the filter material is small and easy to separate. It can fall off by its own weight without external force.
If under the action of back blowing, it can be completely removed. If anti-static PTFE high-temperature film is used, the dust will be peeled off more easily and the dust will be cleaned more thoroughly.
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