A decent air purifier can also serve the function of a humidifier. However, as is the case with all humidifiers in general, there should be no draft since otherwise the effectiveness will be null. The first and second speeds are so quiet that they are virtually inaudible. However, the price of $6950 for this model is so prohibitively expensive that purchasing it is a waste of money. Because I did not have a spare adaptor at home, I had to go out and purchase one. Even after three hours of trying to connect to the Xiaomi application while playing the tambourine, I was unable to do so because this particular model does not even exist. Additionally, the application model that has a "screen" does not see the humidifier that is present. This "Chinese" model is not one that I would suggest.