When I began therapy and not getting much time in, my leaks did vary a little. When I finally settled in with all-nighters, I had 3 consecutive nights at 4Lmin., then 2 consecutive 6L/min. Then I cleaned my equipment for the first time last weekend. That night I struggled with my mask and trying to adjust it and lifing it a few times and trying to re-adjust. I figure that might raise the leak rate a little. I eventually turned it off and looked and discovered I had put the pillows on the headgear upside down . Finally settled in and wasn't surprised to see the leak was up a notch to 7L/min. I have had 5 consecutive 7L/min. I cleaned my equipment again yesterday and this time got it right getting the pillows. The leak was 7L/min.
My husband tells me that sometimes I make noise with my mouth and I suspect it is mouth puffs as heard described on this forum. I have quizzed how much I do this because of course I have considered I might need a chin strap. He tells me maybe once or twice a night. He wakes me up to tell me my mouth is doing it's thing. It isn't often in the night that he hears it and it has never woken me. Just my husband wakes me about it.
With the leak rate so low I am not really worrying about the need for a chin strap ... unless for some reason the readings I am seeing are not accurate. I am not complaining at all with that leak rate though. And content with all my numbers.
I like the pillows and my AHI are all very good with the exception of once last week I woke at 5:30 with a sneezing spell with my mask on. My AHI registered 7.8. I think probably raised by the sneezing. I sneezed all day long and lots of congestion in my nose. Thought I was getting sick and blew my nose so much it got sore. Not a treat putting the pillows on that night with a sore nose. I used some Ayr nose saline gel with aloe. That is wonderful stuff! That night I found my humidifier was bone dry and probably had been the night before blowing into my nose. I think that caused the sneezing/congested nose reaction. The next night with water in, I was well again and good AHI.