Face mask has an exhaust valve which helps to breathe smoothly and also to release the Moisture and heat ;Effectively reduce CO2 and the relative humidity inside the mask to keep it dry and fresh. It also keeps you away from toxins and harmful substances in the air. The mask reduces the risk of breathing in gases, noxious smells, pollen, smoke, dust and other harmful particles. This Mask is washable, reusable and can match more filter papers to use.
Face Mask - 2pcs