- MADE IN USA 3 LAYER 3 FOLD FULLY COVERS FROM NOSE TO CHIN -DESIGNED TO BE BREATHABLE -ASTM LEVEL 3 (Class 1) DISPOSABLE FACE COVERING (Shields nose and mouth from foreign substances) -Replace the mask as necessary throughout the day not exceeding 4 hours per single use. If the covering becomes damaged soiled or has been used in crowded places for an extended period of time remove and dispose of without touching any surface. -Store at room temperature avoid excess heat and keep dry.