The devices that can provide you “continuous positive airway pressure” can be used for treating sleep apnea. This actually helps in keeping airway open. The M series remstar plus is a type of machine that provides you CPAP (continuous positive airway pressure). You can hang this device to some humidifier and there are some other settings as well that have already been programmed in it. For the sake of adjusting the settings (just like pressure of the device) for this machine, a special mode needs to be accessed known as provider mode. Once you get into it then there are different options available to you and you can set it accordingly.