Indoor air quality testing (IAQ) is becoming increasingly important as a health matter. Your home may actually be making you and your family sick. With more energy efficient building standards, homes are more insulated and sealed up more than ever before. Without fresh air exchange, the air in the home can cause a buildup of harmful pathogens. These include mold, radon gas and other airborne irritants. Other irritants come from cleaning chemicals, carpeting, furniture, and other sources which emit harmful fumes.