Thanks for getting back to me Chris. You are right about Ebay. I have also been flagged by Ebay. I think if you sell a lot of non medical stuff on ebay, every now and again you can slip something medical by undetected. Thank you for your advice and as far as selling on these boards is there a sectio...

Quick question.... I am curious to hear your opinions... What are the best platforms to use when selling used respiratory / CPAP equipment? I know, I know. Before you grill me on how I am supposed to be licensed. I already know that. With that being said, This question is for the people who are not ...

I guess mine is not an Opi... Thank you though. Much appreciated...

I purchased a used Everflo Q machine with no manual and am wondering if the machine has OPI (oxygen percentage indicator). From what I understand it is a bonus feature that some models have and others don't. What would be the easiest way for me to determine whether the machine has OPI or not? Thank ...