Indoor air quality (IAQ) describes conditions inside a building that can affect comfort, health and work, including ventilation, carbon dioxide, particles, humidity, temperature and volatile compounds. A sensor reading is an indicator, not a diagnosis: placement, calibration, occupancy, outdoor air and the device’s measurement method affect results. Carbon dioxide can help assess ventilation in occupied spaces but does not represent every pollutant. An IAQ programme should define purpose, locations, sampling interval, thresholds from applicable guidance, maintenance and who responds to alerts. Trends and corroborating measurements are more useful than a single value. Any corrective action should consider the building and HVAC system, while suspected health or regulatory issues require competent professional assessment rather than an unverified dashboard conclusion.
IT glossary
Indoor air quality (IAQ)
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