If I sweat while wearing the mask, do I need to change it immediately?

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OutcrowdWed, Jul 27, 2022 5:08 PM
KevinSat, Jul 30, 2022 7:53 PM
If more water is generated inside the mask due to sweating, etc., it needs to be replaced in time. Medical surgical masks have an inner and outer 3-layer structure, the outer layer is the water barrier layer, the middle is the filter layer, and the inner layer is the moisture-absorbing layer, if the mask is wet, it will reduce the protective effect of the mask.
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