Man is the most intelligent race on Earth and hence has the hunger to wield his enormous powers on everything around him. It has been this lust for comfort that drove him to adjust the air around him to his own liking and even opposite to what the natural weather and climate dictate. It was thus that the first air conditioners based on the principles of evaporation of water and heat conduction were employed in ancient China and Rome. However, as time passed and man made huge strides in science, mechanical devices to change the temperature and humidity content of
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