They can help prevent illness and protect the people around ... just like the N95 mask, says Dr. Nina Shapiro, a pediatric ear, nose and throat specialist at Westside Head and Neck in California.
A mask with layers offers better protection, as it creates a stronger ... snug fit. 2. Knotting the ear loops of a 3-ply surgical mask The second method is to knot the ear loops of a 3-ply ...