IAQ

Indoor Air Quality

The composite measure of indoor air pollutants (PM2.5, VOCs, CO₂, humidity) affecting health and comfort.

Indoor Air Quality is the composite measure of air pollutants and conditions inside a building — particulate matter (PM2.5 and PM10), volatile organic compounds (VOCs), carbon dioxide (CO₂), formaldehyde, humidity and temperature. Poor IAQ is linked to respiratory issues, allergies and "sick building syndrome." Modern smart air purifiers, ventilation systems and IAQ sensors are becoming more common in Australian homes — especially after the 2019-20 bushfire smoke season.