I tried not to easy any gas, but a little went to waste because I wasn't sure it was pure Nitrogen , plus an emotional reaction made me made silly mistakes, like the configuration was 1 foot away from where I ended up sitting then I ad to move with the bag over my head, then I tried to increase the airflow to be sure oxygen was taken out of the bag, silly mistakes like that ... Ended up in only feeling dizzy and the gas emptied... It was a rush, but didn't work, its too much wanting to loose consciousness and waiting for it.... Fuck that I'm going with N, hoping to get the 2nd bottle next week , wish me good luck on obtaining it