2015 First Aid Exam No. 3 Taken from the 2015 Northern Regional First Aid Contest held in Clymer, New York Progress Indicator: Question 2 of 30 2.  The BioPak 240 Revolution is approved when the oxygen cylinder is fullycharged with compressed __________ or aviation grade oxygen at ___________ psi. Choices: construction, 3010 medical, 2660 medical, 3000