Instructions: 1. Put the medical mask into the cloth mask, as long as the ear hook is put out, gently adjust the position of the mask, pull it to the most open, you can use it normally! 2. You can take out the medical mask every day, put it clean, and then clean the cloth mask, you can use it many times. In fact, general cloth masks can already block the dust and foam in the air to a certain degree. In very times, medical masks are added to take into consideration environmental protection and reduce garbage, and at the same time, medical masks can be left to more people in need!