Immediately after delivery of special material for 3D printer we start with printing of face masks / respirators against COVID-19.
For faster process we took one from the freely accessible models of face mask, which we adjusted and redesign it for better fit to the face and at the same time take in account a different shapes and size of face.
We use as a filter simple piece of quality cotton fabric from the beginning. Than a piece of Anti-allergy material. After while we get an access to the special Nano-fiber material which have to kill more than 99% of viruses and bacteria’s, which could be the best for filters.
Change of this filter is very simple and you cannot even touch contaminated one.