Regarding the use of ventilators, I am not sure if I want to ask about invasive ventilators or non-invasive ventilators. An invasive ventilator is a ventilator that is used through the mouth, with a tracheal tube, and is usually used in hospitals. Ventilators for home use are usually non-invasive ventilators. In the process of non-invasive breathing, the following issues need to be noted: first, non-invasive ventilators should find a mask suitable for the patient’s face size, because the mask has to be close to the facial skin, it needs to have a certain degree of sealing, in order to ensure that the use of the process does not leak, once the air leakage, the treatment effect is poor. Secondly, connect the pipeline, the pipeline of the ventilator should also have a certain degree of sealing, otherwise there will also be air leakage. Again, the ventilator will have a humidifier, you need to add saline to the humidifier before use, which can avoid the patient’s airway from being too dry in the process of using the ventilator. Finally, about the parameters of the ventilator, the parameters of the ventilator is not recommended for patients to debug at home, need to go to the hospital by the doctor according to the patient’s condition to debug a parameter, the parameters can not be changed after debugging, the patient only need to wear the mask every day, turn on the machine can be used.