Installing disposable filters

Is there a correct direction to install the fine/disposable filters into the machine? Mine have a "fuzzier" side with the Phillips/Respironics logos on it, and a "fibrous" side that's just white with no markings. I just put my first one into the machine a week or so ago, fuzzy side out (pressed directly against the foam filter) and I don't see any visible change in the filter. Is that correct?

I believe these are your filters. Just click on the important tips tab. https://www.cpap.com/productpage/pr-sys ... mments-tab

That's exactly what I couldn't find. Guess I was doing it right after all! Thanks for the link!

I believe that once you stick it in, you'll still see the Respironics label. (until you put in the foam filter.) Think of it as advertising.