The N95 Mask Can Filter Anything Above 0.3 Micron, the Covid19 Virus is 0.125 Micron, the N95 May Filter Some of the Virus Particles but for the Most Part, Moves Freely Through the Mask. N95 mask ratings: http://www.ph.ucla.edu/epi/bioter/n95masks.html Size of the virus: https://www.avon-protection.com/downloads/product_brochures/GR04471-01%20Coronavirus%20-%20WHITE%20PAPER.pdf So the virus needs to be 3 times larger for a N95 to catch it. The paper masks / home made masks we are being asked to wear will not filter the virus at all. Have you ever seen the President wear a mask? What do you think he has in his medicine cabinet? HCQ, z-pack, zinc?