Our nasal cannula contains silicone and plastic. It can effectively remove excess mucus from the nose, maintain airway patency, reduce nasal problems, and promote overall respiratory health. Its usage is simple: clip the product onto the bridge of the nose, slide it behind the nose, and then lock it. Use for 10 minutes every day for better results. It can keep the respiratory tract unobstructed and reduce discomfort such as nasal congestion and runny nose, providing you with a comfortable breathing experience.