Personal Protective Equipment and Self-Contained Breathing Apparatus No. 3 Questions taken from Jones & Bartlett Fundamentals of Fire Fighter Skills (3rd Edition) Progress Indicator: Question 3 of 22 3.  The oxygen cylinder must be fully charged to above __________ to perform a high pressure leak test. Choices: 2000 psi 1500 psi 2250 psi 3000 psi