Can I use reusable mask again?
Each mask kit with a pair should last two months when used on a daily "wear one, wash one" cycle. After that, the masks are still usable, but their antimicrobial and filtration abilities are diminished.
Washable reusable masks
Reusable face masks may not be as effective as medical-grade masks, but they do have some advantages: They're reusable; you can put them on, wash them, and use them again.