mask liner alter the fit of the mask?

[sleepingbetter0209]

I have used mask liner in the past and it helps reduce noise, sometimes prevent leaks and reduce itching. I noticed that it sometimes alters the fit of the mask. I currently wear a hybrid mask F 40 by Resmed. Has anyone found that the fit seems tighter using the liner and it makes it hard to exhale ?

[Okie bipap]

Make sure the mask liner does not cover the holes under your nose. I use a mask liner and I had to enlarge the hole in the liner so it didn't block the hole in the mask.