Anti-gas and dustproof mask
A technology of dust-proof masks and face shields, which is applied in the direction of breathing masks, life-saving equipment, respiratory protection containers, etc., which can solve the problems of great physical injury, suffocation, and inability to play, so as to eliminate the feeling of suffocation and suffocation, and solve occupational diseases Effect
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[0007] A kind of anti-virus and dust-proof mask that can breathe fresh air, including a mask 1, a cover ring 2 is arranged on the edge of the mask 1, and a lock belt 3 and a lock 4 are also arranged on the edge of the mask 1. The front portion is provided with two layers of filter screens 5,6, and the middle of the two layers of filter screens 5,6 is provided with a ventilating fan 7, and the ventilating fan 7 is connected with a power cord 9, and the bottom of the mask 1 is provided with an air duct 8.
[0008] During use, the anti-virus and dust-proof mask of the present invention is worn on the face according to the conventional method, the nose and mouth are protected, and the end of the air pipe 8 is placed in an open position away from the pollution source of the work place, and the ventilation fan 7 is connected to the power supply through the power cord 8 , Ventilation fan 7 starts working, exhausts to the mask front, and fresh air is sucked in the mask by air duct 8 si...
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