Not long ago, I received this product and it came in handy whenever I went outdoors because many people were sick so I wore this and it helped prevent catching a cold from anyone, but when I was at home and didn't wear the mask, I caught a bad virus from my father so I wore the mask again so that I could cover my coughs and save my mother from getting sick as well. Either way, I used this to prevent and save others from getting sick so I recommend having one as well your friends and family!