back using the Q-FX
I've been using the Q-FX again recently because for some reason I was having leakage problems with the Liberty. I seem to have got the adjustment just right at the moment so will be ok until I need to wash the headgear....
I've been using the Q-FX again recently because for some reason I was having leakage problems with the Liberty. I seem to have got the adjustment just right at the moment so will be ok until I need to wash the headgear....
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