Comfortable & Breathable Made of skin-friendly non-woven fabric, this mask is lightweight and comfortable, no rub your face and makeup. 95% High Filtration Standards All the filter efficiency indicators are above 95%, effective dust prevention, PM2.5 industry, irritant gas, haze, particulate matter, allergy, pollen, automobile exhaust, etc. Ideal for colds, haze, fog, daily use. Great Design The environmentally friendly materials are adopted. The nose bridge clip design can be adjusted most comfortably according to different face shapes. The ear band is stretchable and does not drop easily. Very elastic, perfect fit face after stretching.