Features: Breathable material and cute patterns, which makes it useful and fashionable. Perfect design, when you wear it , it fits seamlessly into your face. Elastic ear loop is easy to wear and no pressure to the ears. Non-woven outer layer + filter paper layer + skin friendly non-woven inner layer. No glass fibers, hypoallergenic. Multi-layer design blocks air pollution to protect user. Low breathing resistance. Folds expand to offer full coverage over nose and mouth. Nose piece along top of protective allow for a custom fit. Perfect fitting.Lightweight with elastic earloops, it is comfortable and easy to put on or take off.