Product Feature: Unisex adult face mask The reusable washable cotton mask One size fits all with an adjustable hook strap Filter breathing valve for comfort Includes (2) PM2.5 five-layer carbon filters Easy installation of filters Plastic nose bridge adjustment for a custom fit
Filter function: 1.The first layer: high efficient filter cloth filter the dust of micron. 2.The second layer: meltblown cloth to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies. 3.The third layer: high efficient filter cloth filter benzene and a smaller function of filtering dust microns. 4.The fourth layer: activated carbon cloth filter density, smaller material. 5.The fifth layer: spunbond cloth, filter out all kinds of harmful substances.
Clean & Care Instructions: PM2.5 Filter can NOT be cleaned and must be replaced. Recommended Bi-Weekly. Clean the Outer Face Mask with a neutral detergent. Hang dry to finish cleaning.
Remark: These photos are for reference only, colors may different. Ventilation Port position may different.