Description
Someone sent me this video, in French, about making improvised facemasks from coffee filters.
This may or may not be helpful.
It won't keep out the pure viruses but, contained in water droplets (spit) it may be helpful.
This is not scientifically approved and is just made to help in view of the shortage of approved facemasks.
It is not me speaking. It is the person who thought of the masks.