United Airlines - Inflight Services -
Comprehensive Final Exam Practice Guide 2026
1. Halon/BRX Fire Extinguisher Used for A, B, and C fires.
With hose, lasts 12 sec-
onds. Without hose, lasts 8
seconds.
2. Protective Breathing Equipment (PBE) Oxygen duration is 15
minutes. Blinking green
light indicates that oxygen
is still flowing. Alternating
green/red light indicates it
is time to vacate the scene
before oxygen runs out.
3. Water Fire Extinguisher Should only be used on
class A fires or on PEDs.
Contains an antifreeze ad-
ditive which may cause
skin/eye irritation. Water
will last 30 seconds contin-
uously and you must turn
the cylinder clockwise until
it punctures the cartridge
to start use.
, United Airlines - Inflight Services -
Comprehensive Final Exam Practice Guide 2026
4. Portable Pulse Oxygen Bottle (PPOB) Lasts up to 180 minutes.
Should only be used when
a person is breathing.
5. Portable Oxygen Bottle (POB) Make sure to not deplete
below 500 psi if other oxy-
gen sources are available.
Hose should be plugged
into the high flow out-
let and gauge should be
faced towards the aisle or
FA when in use.
6. Aviox Oxygen (Dual Canister) Used following a decom-
pression. Gets very hot
Comprehensive Final Exam Practice Guide 2026
1. Halon/BRX Fire Extinguisher Used for A, B, and C fires.
With hose, lasts 12 sec-
onds. Without hose, lasts 8
seconds.
2. Protective Breathing Equipment (PBE) Oxygen duration is 15
minutes. Blinking green
light indicates that oxygen
is still flowing. Alternating
green/red light indicates it
is time to vacate the scene
before oxygen runs out.
3. Water Fire Extinguisher Should only be used on
class A fires or on PEDs.
Contains an antifreeze ad-
ditive which may cause
skin/eye irritation. Water
will last 30 seconds contin-
uously and you must turn
the cylinder clockwise until
it punctures the cartridge
to start use.
, United Airlines - Inflight Services -
Comprehensive Final Exam Practice Guide 2026
4. Portable Pulse Oxygen Bottle (PPOB) Lasts up to 180 minutes.
Should only be used when
a person is breathing.
5. Portable Oxygen Bottle (POB) Make sure to not deplete
below 500 psi if other oxy-
gen sources are available.
Hose should be plugged
into the high flow out-
let and gauge should be
faced towards the aisle or
FA when in use.
6. Aviox Oxygen (Dual Canister) Used following a decom-
pression. Gets very hot
