Process of Indoor Air Quality Testing Indoor Air Quality (IAQ) refers to the air quality inside buildings and structures. Understanding and controlling common pollutants indoors can help reduce your risk of indoor health concerns and vastly improve the occupants comfort level. Indoor air pollutants are a known cause contributing to health effects that may be experienced by occupants soon after exposure or, possibly, years later. For more information visit us at americlean.com. in Public bookmarkswith indoor-air-quality-testingby 2 users