Indoor Air Quality Assessment in an Art Gallery with an HVAC System

An assessment of thermal environment and indoor air quality (IAQ) in a lagre art gallery, which is mechannically ventilated, is presented. Measurements of indoor environmental parameters, CO 2 , formaldehyde, NH 3 , Randon, and TVOC concentrations were performed, while the comprehensive air quality evaluation index was calculated to describe the employees's feeling of discomfort and indoor air classification. Results show that pollution levels of the exhibition hall classifed as Class II, and indoor air environment is in accordance with personal demand. It is revealed that the indoor air environment largely depents on the numbers of occupants and the indoor soureces owing to various human activities. This work can be used to help define the ideal or optimum exhibition environment.