Double Layer: Protective from airborne particles (germs, dust, pollen…) and air pollution.
Reusable: Washable fabric material. Hand washing recommended. Only non-chlorine bleach if needed. Gently rub with soap or mild detergent under cold water. Hang dry or lay flat to dry. DO NOT TWIST OR WRING FABRIC.
Applicable for for indoor and outdoor daily use: Grocery markets, parts. City streets, airports...