Anti-smog mouth mask or head hood
An anti-smog and mask technology, applied in protective clothing, clothing, clothing, etc., can solve problems such as air permeability that no one knows, to reduce exposure to allergens and irritants, reduce harmful dust particles, prevent dust and The effect of pollen being inhaled
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[0032] In recent years, various attempts have been made in the technical field of combating smog.
[0033] German company Cosaen uses polymer nanopolymer materials with a pore size of 700 nanometers. Although a balance has been achieved between breathability and anti-fog, after all, breathability has been sacrificed for anti-fog.
[0034] The functional nuclear pore membrane technology developed by Tsinghua University, the electrospun film of Beijing University of Chemical Technology, and the anti-smog screens of Northwestern Polytechnical University are all products that prevent smog by reducing the aperture, and have to sacrifice to prevent smog breathability.
[0035] Stanford University in the United States spun polyacrylonitrile into extremely tiny fibers whose diameter is one-thousandth of the thickness of a hair, and then made the fibers into a film and covered them with gauze to form a low-cost filter. However, the fine particles cling to the screen so strongly that ...
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