Breathing valve outdoor Facial mask

2 Pack Dust Mask by undwider, Anti Dust Face Mask with Valve, Reusable Breathing Outdoor Facial Mask for Men and Women, 4 Filters and 2 Valves Included, Black.only $19.99

• his face mask is an ideal for running, walking, jogging.
• The breath dust mask is made of high-quality nylon material that is moisture-wicking and very breathable, comfortable.
• Employs an adjustable strip on the outside across the bridge of the nose that can be bent for a custom fit.
• Dual one-way breathing valve can discharge excess exhaust gas and water vapor, which keeps breathing smooth. It is especially useful for those who need to wear a mask for hours at a time.
• Reusable for about 3-12 months depending on air quality conditions. The mesh dust mask shell and valves can be washed when they get dirty, the filter is replaceable. Once a month change is recommended. The extra 4 filters are ready for you and can be replaced at any time.

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