More information about masks and how masks protect you is available on the CDC website.
APPROVED FACE COVERINGS
All face coverings must, at a minimum:
Fit properly and closely on the face without any gaps along the edges or around the nose, fully covering your nose and mouth, and secure under your chin.
Not Permitted:
Face coverings with exhalation valves
Face coverings, including bandanas, that are unable to be secured under your chin
Neck Gaitors
Mesh materials
Face coverings which contain holes or are significantly damaged
