(Tom: You have to do your own homework on mask research to decide for yourself if there is an increased chance of bacterial infection in your lungs from the rebreathing of exhaled toxins from the inside of the mask.)
“it is possible that — as in 1918 — a similar pattern of viral damage followed by bacterial invasion could unfold, say the authors. Preparations for diagnosing, treating and preventing bacterial pneumonia should be among highest priorities in influenza pandemic planning, they write. “We are encouraged by the fact that pandemic planners are already considering and implementing some of these actions,” says Dr. Fauci.”
https://www.nih.gov/news-events/news-releases/bacterial-pneumonia-caused-most-deaths-1918-influenza-pandemic