Thanks to both of you. I will look into the Ozone solution. It's probably cheaper and safer than opening the unit.

Newbie post. Obtained a Resmed Autoset II that was supposed to be a 4 hr machine in a smoke free environment. It had 90 hours on it and smells of smoke. I've run the machine outside and it helped reduce the smoke smell. Before I spend the money to buy the secure torx bit to open the machine... Does ...