Saving Energy and Creating Healthy, Comfortable Environments www.berner.com Industrial Parts Manuf. Installs Air Doors for Energy Eciency and Gets an IAQ Surprise Berner International Corp. Coleman Tools Union Grove, Wis.—Coleman Tool & Mfg. Co. originally specied air curtains to save monthly winter heating costs, but later discovered a dual purpose of ltering welding process smoke to signicantly improve employee indoor air quality (IA

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