· Dust-proof It can protect your mouth and face from dust, cold, dust, pollen, allergies, fog and haze, exhaust emissions, second-hand smoking. It's a perfect gift for those who have an allergy to dust. · Elastic and comfortable It is a soft but elastic face cover. The face cover is breathable, the elastic straps can be adjusted to fit your facial contour to prevent it from leaving traces on their skin after taking it off. · High-quality printing Thermal transfer print can maintain the true color of the original picture.