Product Features 1. Disposable, single-use, breathable, light and environment-friendly. 2. High elasticity ear loop help fit different users and dual point attachment helps provide a secure seal. 3. Adjustable nose piece for extra comfort. 4. At least 95% filtration efficiency against certain non-oil particles. Points for Attention 1. This product is prohibited to be used with damaged package. 2. Do not use in atmospheres containing less than 19.5% oxygen, as this respirator does not supply oxygen; Not for use in oil mist atmospheres. 3. If the product becomes damaged, soiled, or breathing becomes difficult, leave the contaminated area immediately and replace the product. 4. This product is one-time use only and can not be washed. 5. This product should be stored in a clean, dry and ventilated environment with relative humidity less than 80% and without harmful gas.