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The control of certain environmental conditions including air temperature, air motion, moisture level, radiant heat energy level, dust, various...



= Encyclopedia Article; = Research Update
Figure 1.Ranges of operative temperature and relative humidity acceptable to at least 80% of sedentary persons in typical summer or winter clothing and doing light activities. In the overlap area, people with summer clothing might feel slightly cool, while those in winter clothing might feel slightly warm.
From Encyclopedia article 'Air conditioning'
Figure 2.Schematic of room air conditioner. (After American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc., Guide and Data Book, 1967)
From Encyclopedia article 'Air conditioning'
Figure 3.Schematic of central air-handling unit.
From Encyclopedia article 'Air conditioning'