A smart HVAC (heating, ventilation, and air conditioning) system simply connects all components with smart wireless technologies. The goal of a smart home air system is to let you fully control the temperature in a particular room or home office — including humidity, fan speed, etc. — to achieve an ideal comfort level. You can even control the system using your phone instead of dedicated devices. That saves time by automating routine tasks, and money by regulating the use of electricity more efficiently. It means smart energy-efficient air systems can lower energy bills, which is a lifetime benefit.