What type of nitrogen is best for suicide food grade or industrail grade

what type of OFN nitrogen gas is best for suicide food grade NITROGEN or industrial grade NITROGEN THANKS IF YOU COULD GIVE ME AN ANSWER IM 85 YEARS OLD AND IM LOSING MY MEMORY
Faithfull789
Asked Apr 27, 2015
charcoal
bob111
Answered Mar 08, 2016

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