One reason human beings can thrive in all kinds of climates is that they can control the qualities of the air in the enclosed spaces in which they live Air conditioning is the use of mechanical systems to achieve that control in such places as homes, offices, theaters, institutions, factories, airplanes and automobiles

In places where winters and summers hits the highest level of temperature scale, heating and air conditioning systems in these type of areas should be of good quality and must maintained carefully To make lives comfortable in chilling days of winters and warm sweltering weather during summer one should have sufficient and adequate preparations to cope with the frostbites and heat strokes