Certified Energy Auditor Practice Exam 2025 – 400 Free Practice Questions to Pass the Exam

Thermal comfort is primarily influenced by environmental factors that directly affect an individual’s ability to maintain a comfortable body temperature. The factors that play a significant role in this aspect include air temperature, humidity, and air speed.

Humidity refers to the amount of moisture in the air and can significantly impact how hot or cold it feels. High humidity levels can make it feel warmer than it actually is because it impair's the body's ability to cool itself through evaporation of sweat.

Air temperature is the most obvious factor, as it represents the warmth or coolness of the environment surrounding an individual. It plays a critical role in how comfortable a person feels.

Air speed pertains to the movement of air in an environment. Increased air movement can enhance evaporative cooling, making warm conditions feel cooler and thus contributing positively to thermal comfort.

While occupant density may affect perceptions of comfort, such as how cramped or open a space feels, it does not directly influence the physiological responses related to thermal comfort in the same way that the other factors do. It is important to focus on how environmental conditions impact individual comfort rather than the density of people within a space.