Indoor Environmental Quality: Lighting and Acoustics

Buildings are characterized by a mixture of environmental factors—(hygro)thermal, olfactory, luminous, and acoustic—that are commonly encapsulated under the banner of indoor environmental qualities (IEQ). Although a substantial amount of research has been done on the effects of IEQ on comfort and satisfaction of building users, the complex physical, physiological, and psychological processes underlying human responses to environmental stimuli are yet to be fully characterized. Among environmental forces, light and sound contribute significantly, individually and combined, towards the regulation of physio-psychological well-being, being most influential to perception and behavior. This article presents the current state-of-the-art of knowledge in lighting and acoustics, describing the challenges that need to be tackled for a more comprehensive understanding of the influence of the luminous and aural environments on the comfort, performance, and health of building users