1
Q
Whats worn on your back with SCBA
A
Backpack (Carrier):
2
Q
A voice amplifier appliance that is mounted on the Scott AV-3000 HT facepiece.
A
“Epic 3” Voice Amplifier
3
Q
Oxygen Deficient Atmosphere
A
less than 19.5 percent oxygen by volume or has a partial pressure of 148 millimeters of mercury or less
