People who aren’t medical personnel generally don’t wear either of these masks properly. For instanced, they are not careful whether they move too much in a way that can compromise the protective position of the mask. Along with that, touching one’s face can also contribute to miss-aligning the mask or it can amount to breaking the barrier that the mask is there to create in the first place. Facial hair that falls down freely around the face can also break the seal . That being said, for proper protection, it’s important to keep one’s hair tidy; the wearer should also refrain from making fast and clumsy movements; and they should try to not touch the face, as consistently as possible.