It is mandatory for health care workers treating COVID-19 patients to wear N95 masks to prevent themselves from contracting the disease. But with the rising number of coronavirus cases across the globe many countries are facing a shortage of personal protective gear and N95 masks. As a result health care centres are being compelled to reuse the N95 masks which are supposed to be discarded once used. To make N95 masks reusable hospitals are applying different mask sterilization techniques such as hydrogen peroxide vaporization UV light and heat incubation. Now a team of eight researchers from the American Society for
