A dust mask is a flexible pad held over the nose and mouth by elastic or rubber straps to protect against dusts encountered during construction or cleaning activities, such as dusts from drywall, concrete, wood, fiberglass, silica (from ceramic or glass production), or sweeping. -----Wikipedia

1. Elastic Straps

Can attach in two ways: ear hanging or head hanging. Ear hanging having two same length elastic straps, head hanging having two straps behind the head, one upper and one lower, usually not the same length, flat rubber band always is the first choice.

2. Nose Wire/Nose Clip

It’s a strip across the bridge of the nose, plastic with iron cores or aluminum, can be bent for a custom fit.

3. Nose Foam Rubber

It’s a strip of foam stick on the inside of the dust mask across the bridge of the nose to ensure a good seal and stop the steaming come up of the safety goggles pr glasses

4. Exhaust Valves

Exhaust Valve is designed to release hot.humid exhaled breath quickly, helping to prevent an unpleasant build up of heat inside the facepiece and increase comfort for respirator wearers.

The description provided by the Mask Material, please indicate the source!

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