Cât de des ar trebui schimbate măștile cu oxigen?

Keep it clean, change it weekly, or whenever it becomes contaminated. In case of discomfort or emergency, if you use an oxygen mask for a long time, you need to soak it with disinfectant once a day. You can't wash it with hot water. You can usually wash it with cold water. After all, it is a special material and needs to be paid attention to. There is no problem, there is damage and there is a possibility of rupture. Oxygen masks are now disposable. Do not use it multiple times. If economic conditions are limited, you can use it after disinfection.