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Aperture Science Pneumatic Diversity Vent

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This subject is related to the Portal 2 era.

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Pneumatic diversity vent.svg
Pneumatic diversity vent.jpg
Pneumatic Diversity Vent
General information

Aperture Science


Product distribution system


Aperture Science

Used by

The Aperture Science Pneumatic Diversity Vent is a suction and directional component for the Tube Network used throughout the Aperture Science Enrichment Center. This component is used as a means of delivering products throughout the facility.

Gameplay-wise, these components are the vacuums carrying Chell through the facility in Portal, and eventually with Wheatley in the single-player campaign of Portal 2.


  • Created sometime in 1998, the Pneumatic Diversity Vent is the receiving and checkpoint components of a Pipe Network, opposite to that of a Vital Apparatus Vent that only delivers testing elements throughout the facility.[1]
  • Although these vents were not introduced in Portal, the pneumatic pressures still existed throughout the Tube Network. This would mean that Chell had always been carried through the Tube Network in Portal with the aid of the Pneumatic Diversity Vents.
  • The Pneumatic Vent produces an incredibly strong suction, and therefore are placed throughout the Pipe Network as checkpoints to prevent objects from slowing down during distribution.
  • The Passive Monitoring system ensures objects in the vent are identified, but never judged.[1]
  • Any object sucked by a Pneumatic Diversity Vent can be sent to a Diversity Furnace,[1] the possible nature of the orange glow seen in a Pipe Network throughout Portal.
  • "Diversity" is a registered trademark of Aperture Science.[1]

Behind the scenes[edit]

The Pneumatic Diversity Vent was first introduced as a testing element during the Portal ARG, in one of the ASCII art images given by the BBS. Further revealing shows it was originally a testing element in the April 2010 issue of Game Informer,[1] followed by an updated and animated diagram during E3 2010.[2] The Pneumatic Diversity Vent was cut from testing in Portal 2 after playtesters had issues with its use in gameplay, as well as Valve deciding that it didn't have much use other than eliminating turrets.[source?]






Passive Monitoring screens[edit]

List of appearances[edit]

Main games[edit]



External links[edit]