I picked up tabless filters from my therapist. I also cut the tab off my existing filters which makes them the same size as the tabless ones. So far everything is holding tight. So tabless seems to be the way to go if you are experiencing similar problems.

I tried it both ways - no difference. It seems that you can't make a hard crease on the tab. Apparently the tabs cause problems. I post my results after I pick up some tab-less filters tomorrow. I also found a company that makes a filter cover/noise dampener that is supposed to fit my machine. I ord...

My RT just called and said they have some new filters without the tab that will fix the problem. So I will pick some up tomorrow. I also cut the tab off the one I have in there now so I imagine everything will be fine. Thanks everyone for the feedback. Larry

Perhaps my machine did not come with one. Yes my white filters have a tab and yes that seemed to push both filters out. I trimmed a little off the top and that seemed to work for one of them and then they popped out again so I began to thing some back pressure was blowing them out. I may try cutting...

Ah Ha - I don't have a cover. I'm guessing I probably did and perhaps it came off and I never noticed. Let me start looking. Thanks Terry. Larry

I have a Respironics System One with Cflex machine. Recently I have noticed when I wake up that the filters are not in their holder. I use both the white fine filter and the foam filter together. At first I thought they fine filter might be too snug so I trimmed a bit off. That seemed to work for a ...