B-VAULT fire and emergency protection systems, which include fire and smoke detection, gas sensors, and ventilation, are designed to manage the system in a timely manner in order to reduce the ...

Conceptually, vault toilets are simple: Waste remains in the vault until it’s pumped out and a vent system exhausts gases outdoors to keep the shelter relatively odor-free.

They were also able to talk to him via telephone. There was also plenty of air inside because the vault, which measures 20 feet long by 40 feet wide, has its own HVAC system.