It still reduces particles you inhale. Sure virus is smaller than holes in your average mask but usually virus will be floating in fluid. Those should get stopp

It still reduces particles you inhale. Sure virus is smaller than holes in your average mask but usually virus will be floating in fluid. Those should get stopped by mask. Personally, I have been using these cheap masks for over a decade whenever I have to clean any dusty place like a garage. If I don't wear one, I am almost guaranteed a a bad allergic reaction. If I do wear one while cleaning, I might sneeze a bit but usually not need Benadryl and pass out for rest of the day. I imagine same principle applies when it comes to COVID19.