33N Medical Mask -- 50 Pack --3-PLY Non-Woven disposable mask Imported 3-PLY Non-Woven disposable mask. Disposable face masks with ear-loop fitting. Soft & smooth fitting. Built in adjustable nose bar. Comfortable Elastic for the ears. The ear loop of our cotton face mask is adjustable so you can freely change its length according to your face contour to prevent leaving a trace on your face after taking off. The cotton mask comfortably protects your mouth and face from dust, ash, pollen, grass, vehicle exhaust, passive smoking and other airborne pollutants. Compared to other masks, medical protective masks are lightweight, comfortable and soft. You won't feel bulky, ensuring you can work more safely.