The Polish government's directive demands covering the nose and mouth comes into force on Thursday, March 16, 2020. Because the warrant does not require the use of approved filters, we can use virtually any appropriately large piece of material for the mask design. Various companies began to produce their own reusable masks, which seems to be right with current demand. We, however, encourage you to use already owned materials so that after the wave of the virus we are not flooded with wave of unnecessary waste.