Instructions for FFP2 mask: How to clean the corona
2020-12-22 · FFP2 mask, it should be . hung up . in a dry room . so. that it can be . ventilated. It should be . aired for . at least . 72 hours. It is best if the . FFP2 mask. hangs . in the . sun. In this way, the protective effect of the . mask is. retained and it can be reused. If an . FFP2 mask. gets wet while being worn, it should be changed immediately.
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