At Trane, were all about air – cool air, warm air, clean air. As a world leader in air conditioning systems, services and solutions, we control the comfort of the air for people in homes and many of the world......At Trane, were all about air – cool air, warm air, clean air. As a world leader in air conditioning systems, services and solutions, we control the comfort of the air for people in homes and many of the worlds largest and most famous commercial, industrial and institutional buildings. And were applying Tranes expertise in environmental technology and energy conservation to make a difference in energy efficiency around the globe.