Coronavirus mask safety information

Researchers found that heating an N95 respirator/mask in an oven for 30 minutes at 70 °C (160 °F) led to no drop in filtration efficiency and killed over 99% of bacteria, which they used as a proxy for coronavirus. Any paper or ink mask decorations would be unaffected at this temperature. However, they insist that health workers not use their home ovens for this to avoid contaminating their kitchens with coronavirus. They report on the "wide availability of 75 °C blanket warming ovens at hospitals".