Used properly, the Keep face mask (rated to >98.5% BFE) protects users from acquiring serious health conditions caused by airborne contaminants.
Keep face masks are designed for safety and usability and come with clear instructions for their use
Greater Than 98% Bacterial Filtration Efficacy
Adjustable Elastic Ear Loops
Washable and Reusable, See Directions for Details
Keeps eyeglasses fog-free