ANSI/ASHRAE defines thermal comfort as “the condition of mind that expresses satisfaction with the thermal environment“ (ANSI/ASHRAE Addendum to ANSI/ASHRAE Standard 55-2017). Thermal comfort has physical, psychological and affective dimensions. It is influenced by physical factors such as temperature, humidity, air circulation, and indoor air quality, the level of clothing and activity of occupants and recent and longer term indoor and outdoor conditions. It is also influenced by factors such as culture and the level control an occupant has or perceives themselves to have over their environment. It affects the health, well-being, and productivity of individuals and is vital to occupant satisfaction in residential and workplace environments.