Indoor air quality is an important issue that affects worker productivity and health. Requests to evaluate indoor environmental quality issues have risen significantly in recent decades. Poor indoor air quality can result from factors like inadequate ventilation, moisture issues, and various indoor pollutant sources. Common indoor pollutants include biological contaminants, chemicals from products and activities, and particulate matter. Maintaining good indoor air involves controlling pollutant sources, diluting pollutants through ventilation, and filtering the air.

1. Indoor Air Quality & Indoor Environmental Quality © 2011 GLE Associates, Inc.