![Image](http://i152.photobucket.com/albums/s175/kiwigodss/oldleak.jpg)
I just recently got an M-Series Auto and a newer version of the Headrest. Suddenly, my average leak rate is around 40 for the past two nights. This is what it looks like now:
![Image](http://i152.photobucket.com/albums/s175/kiwigodss/newleak.jpg)
As you can see, hugely different.
The lack of spikiness in the leak (other than my bathroom break...lol) makes me think it's not just a mask that's leaky because it's new, nor mouth-breathing.
Did the vent rate for the Headrest double with this newer version? I somehow doubt that.
Does this have to do with the fact the filters on the M-series models no longer have anything covering them (this was really strange to me - was anyone else weirded out by this?)? I wouldn't think that would affect leak rate, but maybe it does?
Does it have to do with the fact I had to take the humidifier off and put the blower cover back on - maybe I reassembled it improperly? I'm going to go through the owner's manual one more time and see if I can make sure that's not the case.
Are the M-Series more leak sensitive?
If anyone has ANY insight I'd appreciate it - a little rise in leak wouldn't worry me, but to go from 25 lpm to 40 seems fairly significant to me.