3 Ply protection – made of non-woven fiber fabric, comfortable and breathable, soft and skin-friendly. Adjust shape according to face shape – increase facial fit, adjustable according to nose height. The mask is made of 3 layers of high quality non-woven fabric – it has a stronger filtering effect and is more warm and breathable. Nose clip design-the nose mask can be used to firmly attach the mask to your nose. If you are used to wearing eyes, you can achieve the purpose of anti-fog. Cover your nose, mouth and chin for full protection. Disposable face masks to protect against dust and weather.