lab qinsun's Album: Wall Photos

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What is the difference between a non-respiratory mask and a simple mask?
The respiratory mask generally refers to the ventilator mask of Figure 1. The oxygen inhalation mask generally refers to the oxygen mask in Figure 2. One-time means that it cannot be used by multiple people, and one person can use it repeatedly.
N95 mask testing equipment:  www . qinsun - lab . com / Products / Application / Mask - Protective - cloth - Tester /