Gauze mask and head-wearing protective equipment
A mask and filter layer technology, applied in protective clothing, life-saving equipment, helmets, etc., can solve the problems of inconvenience to carry and use, inconvenience to carry and use, and achieve the effect of improving the convenience of use
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] Such as figure 1 and figure 2 As shown, a kind of mouth mask is provided in the specific embodiment of the present invention, comprises mouth mask base 10, is formed on the mouth mask base 10 and is used for the breathing channel 11 that gas circulates when breathing for the user, also includes filter layer switching device 20 and two kinds of filter The first filter layer 201 and the second filter layer 202 with different performances, ...
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