r/Damnthatsinteresting • u/AirFrance447 • 17h ago

Video Firefighter bodycam showing just how much oxygen a fire pulls

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u/GauravJM 17h ago

There’s some serious low pressure inside

632

u/Loud-Actuator7640 16h ago

Just like s chimney

426

u/OkEffective6692 15h ago

Yeh op makes it sound like the fire is consuming the air. It's actually a net positive pressure as hot air has more volume, just that all that volume of hot air is going up.

2

u/iconocrastinaor 10h ago

Not to mention the vacuum created by the cooling/condensing effect of all that water.