Adjustable Reusable Face Cover (Pack of 1 mask + 1 filter). Low air resistance Breathe More Smoothy. PM2.5 Anti Haze Mask Breath Valve Cotton Masks Anti-dust Mouth Mask Winter Earmuff Activated Carbon Filter Respirator. Washable up to 86°F. Ironable up to 212°F. Extra filters in packages of 5 units. In 3 colors Navy Blue, Black and Red.