ANTI POLLUTION DUSTPROOF MASK - GIVE YOUR ALL ROUND PROTECTION Our dust mask is helpful in numerous applications, including cleaning, renovation, gardening, sawing, grinding, drilling, and demolition projects. With this dust-proof mask, you have a higher chance of enjoying your life outdoors and ensuring that you stay safe in the workplace regardless of the contaminants and pollen in the air you are dealing with every day. Features 1.Reusable and washable, replaceable active carbon N99 filters, washable dust mask shell. 2.Smooth breathing, mesh nylon reduce breathe resistance. 3.One size fits most, elastic ear loop plus adjustable magic strap adjust as needs. 4.Adjustable nose clip, prevent fogging, fit face better. 5.Premium mesh mask cover durable, non woven. Installation instructions: 1.With nosepiece facing away from you.Holdthe earloop in each hand with the nosepiece up. 2.Position the respirator under the chin. 3. Pull each strap on your ear. Adjustthestraps as comfortable as possible. 4.Place the fingertips of both hands atthetops of the nosepiece. Mold the nosepiece to the shape of the nose bridgebypushing inwards while moving your finger tips down both sides of thenosepiece.Pinching the respirator using only one hand may result in lesseffectiverespirator fit. ✔If it very important to press the nosepiece firmly to the nose bridge to from a good seal. Replacement ： 1.Open the mask,revealing the internalvalve filter. 2.Follow the open instructions on thevalve , counter clockwise rotationof the valve, separation the air valve. 3.Take down two valves,remove the filter. 4.Change a new filter,fllow the closeinstructions on the valve,clockwise rotating the valve and replacement iscompleted. NOTICE: Please Must Check Dimension before purchase.Suit for face circumference(From your nose,one circle）from 54cm/21in-64cm/25in.
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