Please note: this product is NOT refundable. The V-4420 is a disposable N95 mask (respirator) that can used to protect the wearer from airborne particles. The mask has a superior micro fine filter technology which has been designed to protect an individual against RSPM up to 0.3micron. Safely covering the nose and mouth, this mask is NIOSH approved, which may provide added protection from airborne viruses. Made using a latex free knitted textile elastic, the mask is skin friendly and does not change shape in high temperatures. To protect yourself from airborne viruses, this V-4420 can be worn as a precautionary measure whenever you are stepping out of your home. Disposal -Contaminated products should be disposed as hazardous waste in accordance with local regulations. Caution -Recommended to dispose mask when it wears out for hygienic purposes. Do not use for protection against gases, vapour, or in atmosphere containing less than 19% oxygen.