Facemasks have been flying off the shelves faster than the store employees can restock them, but are they actually effective against the Coronavirus? The answer is complicated. Wearing a facemask can give you a false sense of comfort. It does, in reality, protect others more than it protects you personally. If you are sick or caring for those in a high-risk demographic, then you should be wearing a face mask, but for the public in general, it is not recommended, especially since the current situation has lead to a drastic shortfall in the number of masks available.
The recommended face mask for use, if you are in one of the categories that need them, is called an N95 respirator. These masks are fairly easy to manufacture and low cost. They should not be shared with others or reused since this will lower their efficiency. When you put on your face mask, make sure that it seals well by feeling around the edge when you blow out air, looking for leaks.