Freud Posted October 25, 2021 Author Share Posted October 25, 2021 And you’re using a regulator that goes to 25LPM? My CHs can be resistant to O2 or rebound when I come off but it still helps sometimes. But not less than 25LPM and if I’m in the last quarter of an M tank it doesn’t work as well. 1 Quote Link to comment Share on other sites More sharing options...
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