The recent worldwide epidemic of COVID-19 has made masks an indispensable part of our lives. Various types of masks are presently available in the market. Noteworthy are cloth masks that can be washed and used multiple times, but for hygiene and...
The recent worldwide epidemic of COVID-19 has made masks an indispensable part of our lives. Various types of masks are presently available in the market. Noteworthy are cloth masks that can be washed and used multiple times, but for hygiene and...