Penn State University Cloth Face Mask. Many people use a mask for a day to go to work, contact many people but not throw it away (disposable type) or do not wash with antibacterial soap with a cloth mask but hang it up, even put it inside pocket and then reuse tomorrow.
This is very dangerous because after a long day in public, masks stored on so many dirt, saliva of everyone. Viruses and bacteria after one night can penetrate the entire mask. It is best to use disposable masks that are required to put in a covered trash can and wash with antibacterial soap with a cloth mask before reuse.
