Encompassing indoor-air quality (IAQ), thermal quality, and lighting quality, indoor environmental quality (IEQ) impacts the comfort, well-being, and productivity of building occupants. It is a “perceived” experience,1 one affected by factors such as space design, equipment vibration, acoustics, and aesthetics. Codes and standards contain minimum requirements intended to ensure buildings do not impair occupant health and comfort. Environmental-quality optimization is a concept ...

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