We tend to think about high humidity as a problem that impacts both our health and our comfort. However, dry air (caused by low indoor humidity) can cause just as much discomfort as humid air. In fact, recent research suggests that prolonged exposure to excessively dry air can even cause elevated stress levels.
Dry air may also compound the impacts of other indoor air quality problems. Some studies have shown that dry air increases the negative effects of high levels of particulate matter and VOCs.
It’s worth paying attention to the relative humidity levels of the air you breathe, especially since most buildings are not monitored or controlled for humidity levels that are too low. There isn’t even consensus on what constitutes air that’s too dry, but many experts recommend optimal humidity levels between 35 and 60 percent.
Read More
