Posted by Paco (184.108.40.206) on October 04, 2001 at 07:39:11:
In Reply to: O2-how long does it last? posted by Elizabeth on October 03, 2001 at 21:34:46:
...raises a few questions: Why would you use a full tank in four hours? How many attacks did you have during that time? From most reports here, if O2 doesn't work within about 15 minutes, it's not going to work. I almost always get relief within 5-10 minutes, providing that I get on the tank at first symtoms. Are you using a non-rebreathing mask/bag? Are you using a flow rate of 8-12 lpm? When I'm at cycle peak, I have gone through 4-5 E-tanks in a week, so I keep a supply of 6 bottles to make sure I don't run out. If oxygen aborts your CH, you should carry it with you everywhere, public opinion be damned.
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