Ventilation for spiders

[ScottySalticid]

Is ventilation really necessary for spiders? I've been debating whether or not to keep my P. audax containers sealed or punch some holes in the lid. I am highly aware spiders don't use anywhere near as much oxygen as mammals and I heard the ventilation could possibly quickly kill a spider. Exactly how that works I don't know, but I've heard it from some reliable people I know.

What do you guys think of it?

[crpy]

jumpers like to be in the open and do better with ventilation.

No vent allows for fungus/bacteria