If reusable fabric face masks have become part of your routine, you probably know that keeping masks clean is critical. Ideally, you’ll wash your mask after each wearing, using a mild detergent in the machine or mild dish soap when hand-washing. Bleach, ammonia or fabric softeners aren’t recommended. Heat kills the virus, so either use hot water or a hot dryer. Ironing with a steam iron adds a crisp look and extra virus-killing. Don’t share masks and treat a used (worn) mask as potentially contaminated, toss it in a plastic bag until you can properly clean it. Yes, it’s a bit of extra work, but you’re helping stop the spread of corona virus and avoiding filling the garbage with disposable masks.
From:: Face mask cleaning