Eli5: why do firefighters wear oxygen masks when fighting a building fire, but often not in a wildfire? You’re still breathing in smoke…

Question

Eli5: why do firefighters wear oxygen masks when fighting a building fire, but often not in a wildfire? You’re still breathing in smoke…

In: 483

Answer 1

Pretty sure they do wear mask outdoors when going in close.

They always put masks on indoors because that’s where smoke is the most dangerous as it spreads horizontally and vertically.