The price of ventilators varies according to the brand, model and function. For example, the dark horse of domestic ventilators, Wanmai ventilator, has a research and development history of more than 20 years. There are several series of ventilators: DS series, VM series, DF series and RX medical series, and the prices of different series models are different, ranging from more than 3,000 to tens of thousands. But the most important thing is to choose a suitable ventilator according to your illness, such as snoring and mild to moderate apnea, you can choose DS6 and VM6 single-level ventilators; Severe apnea, chronic obstructive pulmonary disease, emphysema and other chronic respiratory diseases can choose DS7 and VM7；; If higher pressure is needed, DS8 and VM8 can be used. Relatively speaking, the price of a two-level ventilator is more expensive. For details, you can check it in official website of Wanmai Medical. It can be used for medical and domestic purposes, and it is also very convenient to use!