Anti Pollution Dust Mask Cycling Mask with 2 Valves and 4 Activated Carbon N99,for Running, Biking, and Outdoor Activitie (Grid-black)

Description

Color:Grid black WHY SHOULD WE NEED THE DUSTPROOF MASK? FEATURES 1: Cotton material dust mask with hanging ear strap type. 2: Mesh nylon with aluminum sheet nose clip type 3: Diving cloth material with big venting holes type. 4: Mesh nylon material with plastic nose clip type FUNCTION HEALTHY BREATHING-Active carbon isolate 95% of dust, SMOOTH BREATHING-Unique ventilation design, excellent permeability, double air breathing valve, air resistance is smaller, smooth breathing. 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 the back of the Velcro PACKAGE INCLUDING: 1 Pack: 1xFlyLuoKe Dustproof Mask 2x Extra two valves 4x cotton