As we all are quite well aware of the use of air conditioning units, the main function of an air conditioner system is to maintain a comfortable relaxing atmosphere indoors while maintaining a constant temperature. This helps us in a number of different ways as it helps us to carry out routine processes at constant temperature which allows us to improve our work quality. These devices have taken over the world so fast that at present people cannot even think of spending a day without them. Modern air conditioning units are one of the most innovative reliable and necessary products used to protect us from the harsh rays of the sun.Nowadays there are a number of different air conditioning brands available in the market. As the overall population of the world is increasing and has reached nearly 5.5 billion. This has increased the demand of having more houses and apartments to accommodatemore people. This has a deep effect on the increasing demand of air conditioning units as they are considered to be one the most necessary elements of life. This is mainly observed in slightly warmer areas of the world and other countries which are formed on deserts.To meet the air conditioning requirements of the growing world the number of brands has also increased for the past four decades. These brands have almost doubled in number in almost all the continents. Out of all these brands there are only a few among them who are providing state well designed and good quality air conditioning systems. They are normally related as the top air conditioning brands of the world. The credit for providing such modernized and energy efficient air conditioning systems goes to the scientists and engineers who are working twenty four hours in these air conditioning companies.As the number of air conditioning companies is increasing, so is the competition among the air conditioner brands. These companies also provide warranties along with the purchase of their air conditioning devices. This is to ensure better quality and durability of these modern air conditioning systems. In another way this also helps to win customers trust. As the competition is increasing amongst the air conditioner brands a new trend is seen in some top quality air conditioner manufacturers of providing after sale maintenance services for the air conditioning products.Amongst all other air conditioning brands some of the leading air conditioning companies are in a quest to manufacture one of the most perfect and high performance air conditioners to provide comfort to their clients. There is a race being run against each other to produce more echo friendly and super cooling devices ever manufactured. Warehouse sales exhibited by a few brands has set a new trend that helps to provide with choice and comfort for the client as all the major brands get a chance to show their products to their clients. Always prefer those brand which offer complete warranties along with their products.