Broadly, the term Indoor Environmental Quality (IEQ), as defined by the Centers for Disease Control and Prevention (CDC), “refers to the quality of the air in an office or other building environments.” Generally, IEQ is tied to building-related symptoms experienced by individuals that are associated with building characteristics, including dampness, cleanliness, and ventilation. Specifically, conditions considered when evaluating a building’s IEQ include indoor and radiant temperatures, air velocities, ventilation rates, humidity levels, and the presence of water-damaged or decayed building materials. In addition, numerous contaminants in the air and on interior surfaces must be factored into the analysis, including mold and mold by-products, asbestos, carbon dioxide, radon, and volatile organic compounds (VOCs), just to name a few. These environmental agents, singularly or in combination, can impact human comfort and health. EES and our team of qualified, experienced professionals work to quickly locate and quantify deficiencies in indoor environmental quality as well as identify ways to mitigate the symptoms and create healthy living and working environments.