None Expire. Medical / Surgical 4-Layers with Nano Silver filtering, Sterilized, anti Bactria single use face masks w/ The ability to prevent SMOKE, DUST, BACTERIAL, GASES H2S, SO2, CO, NH3 . . .. 90% Higher than normal masks.

Anti Sunlight,  Anti UV Slow down the aging process of the skin

Helps prevent the maximum of respiratory infections

The nose bar is flexible, easy to shape to create tight covering the face

Air Filter is Water Proof, Breathable, non-allergies skin

Study shape, good elasticity makes it comfortable to use