Abstract: Microwave energy may be used to disinfect used face masks, respirators and other items containing filtration media for respiration. A method of disinfecting is provided as well as filtration media having indicators to visually indicate when disinfection has occurred. The indicators may function based on temperature and steam generation during microwaving. Thermochromic materials may be used to indicate that a proper temperature has been reached.

Abstract: Skin sealants are applied over skin preps to seal the skin and hold any remaining bacteria in place prior to incisions. It is desirable for the person applying the sealant to know where the sealant has been applied. It is also desirable to be able so see through the sealant to observe the skin to detect any possible infection. A skin sealant is provided that has a pH indicator and co-additive acid that react soon after mixing, rendering the skin prep colorless.