Features: 1. Smile is the most beautiful thing in the world, we should not let smiles hide. 2. This mask is a one-piece 3D mask, it does not have flexibility. 3. Using a special process, no mist will be generated after long-term use. 4. The mask can prevent the saliva in the conversation from flying out, and effectively block the visible fine particles such as saliva, dust, and dust. At this special moment, we should protect our health. 5. The transparent face mask is very easy to clean and has a very good cost performance.