Almost a century back, people could do very little during a hot spell except grumble about the hot weather or if they could afford it - go away to the mountains or spend those months of blazing heat near a sea shore. It was only in 1902, Willis Carrier made his first attempt at a modern electrical air conditioning unit. Since then, there is looking back. Today, air conditioners serve as an indispensable household item specially in zones of sweltering heat and scorching sunlight. With right air conditioning, you can be comfortable anywhere indoors on even on the hottest, stickiest day of the year. Although, air conditioners keep you cool, but they do more than that. An air conditioner circulates the air in a room setting and adds moisture wherever necessary. Well, imagine a day without your air conditioner during blazing hot summers. The mere thought of it sounds unpleasant. If by any chance your air conditioning unit is not performing or broke down, it is best advisable to look fo...