The purchase price of imported ventilators is more than 300,000 yuan, and some of the better features can reach 500,000 yuan or more. The application of respiratory machines is charged by the hour, the cost of 24 hours of use is about 800 yuan, and the cost of continuous use for one year is about 290,000. However, respirators are precision instruments, which are easily scrapped and damaged by continuous application, and they should be overhauled regularly during the process of respirator application, and the corresponding parts are expensive. In addition, ventilators have an end-of-life renewal time, usually 5 years, and imported machines have a longer renewal time, which is mainly determined by daily maintenance. Ventilator is a common resuscitation measure in ICU. The cost of applying ventilator on the first day is about 1500 RMB, including 300 RMB for tracheal intubation, including tracheal intubation, tracheal intubation and laryngoscopy; about 350 RMB for ventilator line, in order to avoid cross infection, disposable ventilation line is used; in addition, the cost of ventilator application and related monitoring is about 550 RMB; the cost of ventilator related care and suctioning is about 250 RMB, including the cost of the closed suction tube, suctioning, and suction tube restart. After the first day, the daily cost was about$800, mainly$550 for the ventilator and related monitoring, and$250 for ventilator-related care and aspiration. However, the use of a ventilator often indicates that the patient is in a critical condition, and the cost of other treatments and monitoring will increase accordingly, as will the overall cost of treatment. A ventilator is a life-saving measure in very critical conditions, and its use can be effective in maintaining the patient’s basic vital signs.