What is this thing?

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What is this big roll of tube in our trucking maintenance bay (i.imgur.com)

submitted 1 year ago by [email protected] to c/[email protected]

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[–] [email protected] 3 points 1 year ago

Looks like an air exhaust. You can see the blower on the left. And then it connects to the top of the roof. To exhaust. It might run in reverse pulling fresh air in. Not sure. But as you can see in the photo other examples of this tube being pulled down to the work area. So if you're working on an engine you don't want to asphyxiate your workers you would need to exhaust the exhaust