Posted by James F (24.26.110.161) on August 14, 2001 at 11:28:44:
In Reply to: O2 posted by Cranpain on August 14, 2001 at 08:37:24:
Actually O2, when used at the high flow rate that we must use it to be effective, can damage your retinas if used for too long (I think no more than 20 minutes). That is why they recommend you do NOT use the elastic on the mask. Should you fall asleep the mask will fall away.