The nasal mask is made of soft silicone material, comes with S, L, M three different sizes of nasal pillows, suitable for different sizes of noses, can be replaced according to the actual situation. Ultra-light and soft headband,so you can hardly fell its presence, less skin contact, multiple levels give you free and comfortable. The mask combination Includes Tube, nasal pillow, 3 sizes cushion and headgear, easy to connect. The frame structure of the nose pillow is lightweight and suitable for different facial shapes. It is recommended to clean the mask once a week, hand wash it with warm water and soap (machine cleaning is not allowed), then rinse it thoroughly, let it dry naturally, and avoid direct sunlight.