How to get through noxious fumes in Baldur's Gate 3

How do you get through noxious fumes in Baldur's Gate 3? Whether it is just your average garden poison cloud or something a little more enchanted and exotic, any trap involving some airborne threat can usually be sourced to a vent. Your party will need to use their passive perception to spot the vent in the first place, but once they do, there are ways to deal with it.
Baldur's Gate 3 has all sorts of little obstacles such as this that require some quick thinking. It's why, in our Baldur's Gate 3 review, we relish every challenge the world of Faerûn has to offer. In this case, you'd be forgiven for thinking you need an expert Rogue, one of the many Baldur's Gate 3 classes, to deal with this threat. However, the real answer is far more *checks notes* mundane.
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