Pneumatic Diversity Vent: Difference between revisions

There have been cases where [[Chell]] would board a Tube to be transported with the help of the pneumatic pressures. In ''Portal'', after [[Chell]] had escaped from her testing tracks, she boards a damaged Transportation Tube, but is unexpectedly pulled back into a [[Test Chamber]] by [[GLaDOS]]. {{spoiler|In ''Portal 2'', she had used it again in a [[Portal 2 Chapter 5 Tube Ride|Tube riding]] scene from the chapter ''The Escape'', in which both Chell and [[Wheatley]] had been sucked up through the Transportation Tubes via pneumatic pulls and were rapidly traveling around the facility. Although this was not a part of Wheatley's plans to confront [[GLaDOS]], he realized that the pneumatic pulls have a chance of bringing them to [[Portal 2 Chapter 5 GLaDOS' Lair|her chamber]].}}

GLaDOS appears to be the only source of operating the pneumatic pulls in the Tubes. This is proven in ''Portal'' after Chell boards into the Tubes; the Cubes are directed elsewhere, yet Chell was brought another direction. Her power over these Vents are also demonstrated in ''Portal 2'', near a [[Portal 2 Chapter 1 Test Chambers 7 & 8|catwalk scene]] where the [[Oracle Turret]] can be found; unveiling entire Tubes to have been completely non-functional after the destruction of GLaDOS.