What does the abbreviation HVAC stand for?

The abbreviation HVAC stands for Heating, Ventilation, and Air Conditioning. This term encompasses the technology and systems used for indoor environmental comfort. Heating refers to systems that increase the temperature of a given space, typically during colder months. Ventilation is essential for maintaining indoor air quality by allowing fresh air to enter, which helps to remove odors, smoke, heat, dust, and excessive moisture. Air Conditioning is the process of cooling and dehumidifying indoor air to provide comfort during warmer times. Together, these three components work cohesively to ensure that residential and commercial spaces are comfortable and conducive to living or working. The other options do not accurately represent the widely recognized terminology used in the HVAC industry.