Reusable Facemask - 3M 9502
These masks are equivalent to N95 masks. They are the one of the masks recommended to be used during pandemic situations.
They have a life span of 5 years. They can be used up to 4 weeks if it’s just used for general usage during the lock down period. For cleaning purposes they can be reused until the user feels like they need to be changed ie: it starts smelling funny or damaged.