High Quality Filter Mask – medical grade 3 Ply surgical masks, BFE>=95%, excellent filtering efficiency. Safety Comfortable – round elastic ear loops .soft and comfortable ear hook masks, no need to adjust it when you work Applicable- hospitals, dental, hotels, industries, laboratories, food industries and other environments. Breathable Design- allergy mask, 3-ply disposable face mask, you can still carefree breathing. The masks we provide are available for use in medical institutions.Not a normal dust mask. Ship from China, don’t buy if you mind. Delivery time is about 10-15 days.