3 Ply Layers Outer layer is for blocking splash and small particles in the air, middle layer is for filtering the breath-in air, contact layer is for absorbing the vapor of exhaled air. Premium Material Soft non woven fabric do no irritation to skin, comfortable and gentle, gives you different using experience. High Elastic Ear Loop High elasticity and will not easily break, less pressure to ears, less uncomfortable feeling to body. Built-in Nose Clip Convenient for adjusting the nose clip to fit nose bridge, better fit the face shape. Widely Applicable Disposable face masks are suitable for indoor and outdoor activities, no matter for personal needs or work requirements, disposable face mask is a better choice.