EPAM has proposed an open-source project called DIY protective face masks “made from readily available materials” or for small-scale production in situations where there is an acute shortage of masks (as is currently the case in Italy). The base material is a polypropylene filter used in replaceable cartridges for air conditioners. Demonstrated on a model that filters particles from 1 micron in size. The virus is smaller, but masks from the nearest pharmacy are no better, and this alternative is for when there are no masks at all (and there are still cartridges for air conditioners 😉
Hi, I'm Rauf Aliev. 