Is there a test for good indoor air quality or IAQ?

There is no single test to find an indoor air quality (IAQ) problem. Employers should:

• Check measurements of temperature, humidity, and air flow.
• Inspect and test the heating, ventilation, and air conditioning (HVAC) systems to make sure they are working according to specifications for building use and occupancy.
• Perform a building walk-through to check for odors and look for water damage, leaks, dirt, or pest droppings.
• Eliminate any leaks and standing water in humidifiers, air conditioning units, on roofs, and in boiler pans. (Standing water can become contaminated with bacteria or fungi.)
• Test for radon or for asbestos if required for building occupancy. (In schools, asbestos needs to be checked under the Asbestos Hazard Emergency Response Act or AHERA.)