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The CDC doesn't recommend using face shields instead of masks because it's unclear how much protection shields provide. However, wearing a face mask may not be possible in every situation. If you must use a face shield instead of a mask, choose one that wraps around the sides of your face and extends below your chin.

Wear a Mask When There is A Lot of COVID in Your Community Wear a mask in public places where there are a lot of people around. The mask must cover your nose. The mask must cover your mouth. The mask must fit under your chin. The mask must be snug on your face. Make sure it is easy to breathe.

Doctors, nurses and technologists might use face shields, together with face masks, when performing procedures that could propel blood or other substances into the air. At Johns Hopkins, care teams wear eye protection or face shields over masks or N95 respirators for additional protection.

Make wearing a mask a normal part of being around other people. The appropriate use, storage and cleaning or disposal of masks are essential to make them as effective as possible. Here are the basics of how to wear a mask: Clean your hands before you put your mask on, as well as before and after you take it off, and after you touch it at any time.