KN95 Sport Dust Mask With exhalation valves + Free 7 Filters + Free 2 Valves

Filter element: Non-woven fabric (filter larger particles); Activated carbon (adsorbing air pollutants); KN95 meltblown filter layer

Mask features: Non-woven layer/ Activated charcoal layer/ Wicking internal so-rim layer /Sub-micron particulate filter layer / Laminated with medical grade non-woven polypropylene non-woven layer

Double air breathing valve: Smooth breathing and reducing heat build-up/Reduce carbon dioxide accumulation/Keep dry and fres/Eliminate heat and moisture

Product Details: Flexible nose clip/Breathable mesh fabric/Air breathing valve/Durable Velcro strap/Adjustable ear loop

Multi-purpose: House cleaning/Travel/Poor air quality/Allergies/Workplace/Sport(Urban cycling/Mountain-biking/Running  Horseriding/Snowboarding/Moto-X/Skiing/Speed walking/Climbing)

Fitting Instructions :1.With nosepiece facing away from you, hold the earloop strap in each hand with the nosepiece up ；2.Position the respirator under the chin ；3.Pull each strap over the ear, adjust the ear strap as comfortable as possible；4.Place the fingertips of both hands at the top of the nosepiece. Mold the nosepiece to the shape of the  nose bridge  by pushing inwards while moving your fingertips down both sides of the nosepiece.

How to change and install the filter: 1.Open the mask and expose the filter valve；2.According to the OPEN directions on the valve, turn the valve-counter clockwise to separate the valve；3.Remove the filter and the valve； 4.Replace the new filter reverse the above steps, clockwise rotation of the valve.

Take measurements before ordering: Although the Velcro strap will fit a variety of head sizes, to determine if the mask fit your facial structure，we highly recommend taking exact measurements using the method described below: Please measure from the height of the bridge of your nose to the tip of your chin before purchasing.

Working life of the mask filter: The effective working life of the mask filters depends on a number of factors,such as: the breathing rate of   the user; ambient levels of pollution; the length of time the filter is actively working; hygiene levels. Taking these factors into account we recommend that the filter should be replaced every month.