What's The Difference Between N95 And Surgical Masks 2021-11-03
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Different materials
There are three layers of medical disposable masks, from the outside to the inside are the waterproof layer, the filter layer, and the comfort layer. The comfort layer is a layer of gauze. When worn, the white gauze faces inward, and the blue waterproof layer faces outwards, with a metal sheet on the side. Face up, don’t wear it backwards, put the rubber band on your ears and squeeze the metal piece to fit your nose, smooth your cheeks, so that there is no gap between the mask and your face.