Product description These masks are Class I medical devices, and can be used in healthcare settings, but should not be used in surgical or high risk situations, or where there is a high risk of contact with liquids or infectious materials. FACE MASK COVERING: Our BYD face mask's spun bound material is soft and breathable while using. The nose clip can be bent to match the shape of your nose for additional security. Ear loops are comfortable and stay in place. 3-LAYER PROTECTION: Our face masks have an inner layer, middle layer and outer layer to provide three layers of protection SINGLE USE: Our box of 50 non-sterile disposable face masks is designed for one-time use and should not be shared to prevent cross-contamination. Discard after use. Pack of 50 Product details BYD Class 1 Mask (Box of 50) Product Dimensions : 7.7 x 2 x 4 inches; 8.01 Ounces Item model number : FG2111 Manufacturer : BYD