Air Key
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Air Key is a Key Item in Signalis used to progress the game. It is one of five elemental keys in Sierpinski and is located in the Vent Room on level B3 of Sierpinski. The vent grate blocking it must be removed with a 10mm Socket Wrench in order to acquire it.
The elemental keys are used to complete the 5-Lock door and unlock the Waiting Room.
