GUKOO PM2.5 Activated Carbon Anti-pollution Sports Mask - Dust Mask with Air Filter. Protection against Exhaust fumes, smog, pollen allergy, For all outdoor activities.

Description

FUNCTION HEALTHY BREATHING-Active carbon filters isolate dust, fumes and particulates. SMOOTH BREATHING-Unique ventilation design, excellent permeability, double air breathing valve, air resistance is smaller, smooth breathing. NOTE * Please tighten the valves to make sure they are tight before using the dust proof mask. * Please kindly know that measurement of size above is for your reference, there might be slight allowable discrepancy. * The color of the item might appear slightly different because of different screen display setting. HOW TO USE: 1.Put the dust mask between the nose and chin. 2.The back of the mask can be fixed with a Velcro. 3.Check if it is appropriate: cover your face with your hands,then breath hard and feel if there is air flow. 4.Make sure you are comfortable after wearing this mask by adjusting