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Half-Life 2 Beta: Air Exchange

The Air-Exchange , also known as the Airex or Air-Conditioner , is a cut Half-Life 2 chapter taking place at a combine facility. The location was of great importance for much of Half-Life 2's existence, being one of the oldest concepts created for the game, and eventually cut at late 2001 - early 2002 in development, with a large amount of work put into the corresponding maps.

credits: port by me