The ventilator can be used by individuals generally from three thousand to four thousand dollars to twenty thousand to thirty thousand dollars are available, this does not mean that the more expensive the better, but in different diseases need to choose the ventilator is not the same. Generally if there is no basic lung disease, there is a sleep apnea syndrome, doctors will recommend that patients are equipped with a special treatment of sleep apnea ventilator, also commonly known as sleep machine, this ventilator is relatively simple, so the price is not very expensive, there are generally cheaper indeed three thousand to four thousand can take down, and then a little better imported seven thousand to But the cheaper the ventilator the greater the noise may be, and the other comfort will be a little worse. If you have chronic underlying lung disease, you need to choose a ventilator called dual level, this ventilator will not increase the airflow obstruction of chronic lung disease airway, causing a force on the lung tissue, this ventilator is relatively more expensive. In addition, the choice of ventilator is not a random individual to buy a ventilator, must be under the guidance of a doctor, according to what kind of disease need to choose, rather than choose the most expensive one is appropriate.