Would %99.2 food grade nitrogen work for exit bag method

[ocean2200reef]

Would %99.2 food grade nitrogen work for exit bag method

 

[locked*n*loaded]

Idk. I'll bump so maybe someone who does can chime in. What's the other 0.8%?

 

[IndictEvolution]

Sorry for late reply, but it depends on what the other 0.8% is I guess. I know some welding nitrogen/argon tanks contain some CO2, and I believe even small amounts of CO2 are not acceptable for inert gas asphyxiation.