Virtual Firefighter
This is the SCBA. It stands for self-contained breathing apparatus. This the what firefighters use to enter an oxygen deficient atmosphere.
Contrary to belief, the air in the bottle is not oxygen. The air is the same that we breath every day.
The bottle holds 2216 pounds of air. This will last firefighters about 15 minutes under working conditions.
The SCBA also has an integrated PASS device. The personal alert safety system sounds when a firefighter is motionless for 30 seconds. Other firefighters can then hone in the sound and remove the firefighter. The firefighter can also manually operate the pass device in case they become lost.