The Face Mask Must fit Correctly – Loose fits where the mask meets the face allow airborne particles to flow under the mask. The mask should have metal that firms to the nose and it should extend under the chin and the best ones are the N95 masks.
The Mask Must Be Worn Correctly When Worn – The mask should be either worn or not worn. It should not be allowed to be worn half way, hanging from the ear, etc.
The Mask Must be Removed Correctly – Perhaps you have encountered the virus while wearing your mask. It protected you! Then you forget that virus particles have landed on the OUTSIDE OF THE MASK. This can be fatal. Wear the mask once and remove by placing it into a plastic bag and then disposing of it. Use gloves to handle and discard the gloves.
Can Masks be Re-worn?
Officially, the answer is “no.” Still, in a mask shortage, re-wearing may be necessary. Results of studies will be coming out soon regarding disinfection, reuse, etc. Used masks get wet and soggy from exhalation as well. The virus lives for days (weeks?) on surfaces so mask handling is going to be quite an issue.