Question from toon_link_346

Where are the Pneumatic Diversity Vents?

In one of the promo trailers for Portal 2, there are things called "Pneumatic Diversity Vent". These things would be tubes that just suck in air. Portals could change the direction of the...sucking...i guess...
But i just finished the game, and i haven't found any. Anyone know why not?

Accepted Answer

phazer answered:

Check the thread here:
Apparently it was removed from the final release.
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