1) Is the mask reusable?
Yes, the mask is reusable. It is sustainable to the environment.
2) How should I wash the mask?
The outer shell of the mask can be washed. If you need to clean the shell of this product, wash it by hand and avoid drying in direct sunlight or in a tumble dryer. The replaceable inner filter (Purar Air Filter) of this product is not washable. When the filter is damaged, deformed or dirty, or when you feel that the breathing resistance increases significantly during use, you can replace the filter immediately.