brand new and high quality Features: Replaceable Filters for face mask, 5-layer filter system effectively keep away from PM 2.5 and a range of airborne contaminants,This product does not include masks,The picture just shows how to use it Face shape design, filters for most face masks, easy to insert or replace the original one.Exhaust Valves Replacement for valve fits any -mask size which have exhaust vent Active carbon filter isolate 99-percent of non-toxic dust, pollen, fumes, common airborne irritants and other non oil based particles.5 layers, soft and breathable, for ideal to protect your mouth and face from Dust, Haze, Germs, Allergies,Smoke,Pollution,Ash, Pollen,Gardening,Crafts Filter Material: 2 * Anti-sticking cloth, 1 * Filter cloth, 1 * Activated Carbon and 1 * Efficient filter cloth as in picture Specification: Material: Materials: made of activated carbon and non-woven melt-blown filter cloth Color: as in picture For people: Adult/Children Note:1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes(without retail package): 10 x filters