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Is it safe to reuse masks?

Yes, reusing a mask is safe. For most people and in most situations, you don’t need to chuck your P2, N95 or KN95 mask out after each use, or each day. A mask is still wearable if its elastic bands continue to create a secure fit and the material looks clean and provides good airflow.

According to the CDC, you can re-wear a mask after you have stored it in a paper bag for a few days.  Viruses have an expected survival time of about 72 hours, so leaving your mask for about five days should be enough time for it to become inactive. Though you may be tempted to rinse or wash your used P2, N95 or KN95 mask, don’t do it. Getting a P2, N95 or KN95 mask wet or rubbing with soap can damage the material.

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