started to use the air conditioner in home personal, first in rooms considered most important, or at least more common, then the whole house. Need of air conditioning was becoming increasingly recognized over time so that today is considered indispensable. Air conditioning equipment can be seen in offices, from the smallest to the largest buildings, apartments and even most of autovechicule are equipped with such a facility. Even the most conservative people finally recognized the importance of the air conditioning in our lives, especially when their argument according to which such a device would put us in great health and life. My websites: Air-conditioning from fad to help necessity