Ordinary medical masks are used to block the splashes exhaled from the oral cavity and nasal cavity. They can be used for one-time hygiene care in ordinary medical environments. They are suitable for general hygiene care activities, such as hygiene cleaning, liquid dispensing, bed cleaning, etc., or pathogenicity Barrier or protection of particles other than microorganisms such as pollen. The Disposable Adult Face Mask has three layers of anti-bacterial protection, the outer layer of anti-bacterial inner layer fits the skin safely and comfortably, and the disposable medical thin breathable mask. Summer medical sterile mask, comprehensive protection of respiratory health. Wearing Instructions 1. Fold and extend the mask. 2. Gently press the nose clip to fit the nose bridge, press to the nose clip, and pull the lower end of the mask to the jaw. 3. Smooth the two sides of the mask so that it fits the face. Matters Needing Attention 1. This product is disposable, it is recommended to replace within 4 hours. 2. Masks should be worn at all times when exposed to a polluted environment. 3. Use with caution for those with abnormal cardiopulmonary function. 4. Mask is a personal hygiene product, only for personal use, do not mix.China Medical Mask website:http://www.aphismask.com/medical-mask/