Posted on 3/19/2021
Heating, ventilation, and air conditioning (HVAC) systems have become as common as electricity in many parts of the world. . But, because they use refrigerant, which can damage the ozone layer, special precaution and certification are needed when han
Heating, ventilation, and air conditioning (HVAC) systems have become as common as electricity in many parts of the world. Whether it's in a home, a car, an office, or any other place where temperature control is necessary, these systems are trusted to keep us comfortable. They are so common that we don't even think about them when they are working. However, like most sy...