Hi, I am a sufferer of many years and never seem to be able to get my machine quite right. My latest issue is that I recently was given a 'new' Resmed series 9 machine with humidifier before I went on a trip. I am now in Istanbul and for the last two nights I have a horrible taste/smell coming through the machine about two minutes after turning it on. I have tried the machine with and without the humidifier section but it makes no difference. Any thoughts?