Disinfecting masks

Published May 6, 2020

The best way to dis­in­fect an N95 mask might be to put it in an oven (185°F for 20 min­utes). Using liq­uid chem­i­cals like per­ox­ide or bleach reduces the masks’ effec­tive­ness tremen­dous­ly, but heat­ing can be done up to 50 times before a mask is no longer effec­tive.

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