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The Evolution of Air Conditioning!

shared by BrittSE on Jul 25, 2013 in Home

The Evolution of Air Conditioning!

shared by BrittSE on Jul 25, 2013 in Home

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In 1931, individual room AC units made their debut. At the time, each unit cost between $10,000 and $50,000. Check out this infographic to learn about air conditioners and how they evolved into the ef...
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