The indoor air quality of businesses and workplaces is a growing concern among managers, business owners, benefits managers, and human resource directors. Where ‘sick building syndrome’ and other worker complaints were treated with suspicion a decade ago, professionals are becoming increasingly aware of the impact that indoor air quality has on operations. When you consider the fact that, according to the National Safety Council (NCS), people spend nearly 90% of their time indoors, it is only natural that companies are turning their attention to the impact of indoor air quality on the health and wellness of their workers.