An air conditioner.[1]

An air conditioner or cooling unit was a device used for buildings and vehicles that was used to keep the temperature of the air cooled to comfortable levels.

During the Cosmic Crisis, the air conditioner in the Justice League Hall of Fame broke down, which caused the room to heat up quickly. This caused the wax sculptures of the Super Friends to melt.[2]

Minimus and Maximus Mole stole four air conditioner units from factories in order to cool Molesville, an extremely hot location almost as deep as the Earth's core.[3]

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