Work environments, as well as homes and businesses, usually require that people spend a majority of their time indoors. As a result, an individual’s long-term health and comfort can depend on indoor air quality testing. Businesses are increasingly interested in air quality monitoring systems to keep an eye on the conditions that maximize worker productivity and save energy. To meet these needs, TSI manufactures a line of effective indoor air quality (IAQ) instruments known for their easy use, consistency and reliability.