Are you a CPAP user? Click here to manage and track your therapy and get support from a professional CPAP therapist.
No. It is not necessary and some people don’t use it at all or only use it during the winter when the air is very dry due to heating. The purpose of the humidifier is to moisten the incoming air so that it doesn’t dry the sinuses. If you breathe solely through your nose, your nasal passages naturally humidify the incoming air.