The function of atomizer is to change the medicine into mist, and then inhale it through the respiratory tract to treat the respiratory diseases of patients. Most of the atomizers sold in the market are ordinary ultrasonic atomizers, and diseases such as tracheitis and pneumonia need to use pneumatic pump atomizers, which cannot be treated by ultrasonic atomizers. In addition, if the patient uses an atomizer at home, there is a risk of aggravating the condition or causing other diseases if the inhalation pipeline is not disinfected in a standardized way. Therefore, doctors generally do not recommend patients to use the purchased atomizer.