- HVAC stands for Heating, Ventilation, and Air Conditioning.

- The three major functions of HVAC are interrelated and provide thermal comfort and acceptable indoor air quality.
- HVAC systems can be used in both domestic and commercial environments.
- HVAC systems can provide ventilation, and maintain pressure relationships between spaces.
- The means of air delivery and removal from spaces is known as room air distribution.
make it shorter but still keep the main idea

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HVAC stands for Heating, Ventilation, and Air Conditioning, encompassing interrelated functions that ensure thermal comfort and indoor air quality in both domestic and commercial settings. HVAC systems provide ventilation, maintain pressure relationships between spaces, and utilize room air distribution for effective air delivery and removal.