10 pieces advanced 3 filter layers face mask

Available in US, ready to ship today!!! Only white is available The price is firm! These are advanced face mask not like the 0.2 cent ones!!! Features: 3 filter layers, WASHABLE and REUSABLE (10times) so with 10 pieces, can use 100 times!!! Materials: non-woven fabrics to bacterial filtration and waterproof layer prevent exposure to body fluids. Washing direction: after used, gently wash and soak off into warm salted water in 15-30mins. Then dry it.