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Ken Kern - Cooling systems... need only supply a drop...
Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature. ...greater cooling differentials... are a real injury to health. (Ken Kern)

Cooling systems... need only supply a drop of from 10 to 20 degrees below that of the outside temperature. ...greater cooling differentials... are a real injury to health.

Ken Kern

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cooling drop health injury need outside real supply temperature

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