As companies seek to improve their bottom line, many examine worker productivity as a means of cutting costs and boosting revenue. Worker productivity, measured by the goods and services produced in an hour, is on a downward slide, according to recent reports.
Indoor pollutants are increasingly recognized as affecting overall health, but studies also link indoor air quality to cognitive function and mood. Inadequate ventilation, elevated levels of carbon dioxide (CO2), and indoor pollutants can hinder one’s ability to focus, concentrate and respond to crises.
The green+ participants' cognitive function scores were twice as high on average as those of the employees in conditions with elevated levels of contaminants. When examining nine cognitive domains, researchers found the largest differences in crisis response, with scores 131 percent higher in the green+ group; the group also scored 288 percent higher in strategy and 299 percent higher in information usage.
“People who work in well-ventilated offices with below-average levels of indoor pollutants and CO2 have significantly higher cognitive functioning scores — in crucial areas such as responding to a crisis or developing strategy — than those who work in offices with typical levels,” the researchers led by Joseph Allen wrote in their study.
“We have been ignoring the 90 percent,” said Joseph Allen, director of the Healthy Buildings Program at the Harvard Center for Health and the Global Environment, and lead author of the study. “We spend 90 percent of our time indoors, and 90 percent of the cost of a building are the occupants, yet indoor environmental quality and its impact on health and productivity are often an afterthought. These results suggest that even modest improvements to indoor environmental quality may have a profound impact on the decision-making performance of workers.”
Building-related illnesses, such as sick building syndrome, initially gained attention in the 1980s. In response, the healthy building movement is addressing issues such as indoor air quality and other aspects of the indoor environment.
Zehnder heat recovery ventilators provide continuous ventilation and replace a third of the air volume in a space each hour with fresh, filtered air. As a balanced ventilation system, it supplies and exhausts an equal amount of air. The most energy-efficient heat recovery ventilation systems on the market, Zehnder systems capture heat from the exhaust air and transfer it to the intake air.
“Diluting sick air with fresh air is a great solution,” Ponziano explained. “Our systems also capture a high percentage of the energy that is otherwise dissipated in the atmosphere.”
Unlike in the 1980s, ventilation solutions exist that both dramatically improve indoor air quality and save energy. Although the energy savings may be easy to calculate, the advantages of being able to form effective strategies and respond to crises are priceless and can have a dramatic impact on a company’s bottom line.
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