Craft Darbar 3 layer linen mask is best suited for all outdoor and indoor activities like bike riding, highway driving, mountain driving, sports activities, trekking, cycling etc. It can be used at any place like office, workplace, home, outside etc for all-day protection. Easy to breathe and speak normal while wearing the mask. It comes with breathing holes and a vent to maintain and balance the air flow. The comfortable and light weight design allows it to fold and fit inside pocket when not in use.