Fabric reusable face masks should be cleaned after each use. They can be washed in the washing machine or by hand. If the mask has a filter pocket, remember to empty it before washing the mask.
It is possible to use a regular detergent that can remove dirt and sweat from the surfaces of the mask. Both hot and cold water is fine for rinsing. Finally, the masks can be dried on a drying rack in direct sunlight.
When the mask is dry, it should be kept in a sanitized container until the next use.