Humidity and Air Quality

Elevated humidity has caused frequent complaints this summer. Humidity has an impact on general comfort and on indoor air quality. Columbia University is one of many schools taking a proactive position in keeping its staff and students comfortable. The Columbia University website presents the following information.

Temperature and Relative Humidity
The ambient indoor temperature and relative humidity of an indoor environment can contribute to the quality and comfort of your indoor environment.  High ambient temperatures and relative humidity can cause occupant discomfort and can provide the appropriate conditions for the growth of molds and mildews.  

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Inc. (ASHRAE) recommends that office indoor temperatures during winter months be between 69 and 76 degrees Fahrenheit (F) with a relative humidity between 30 and 60 percent.  During the summer months they recommend an indoor temperature range of 73 to 79 degrees F and a relative humidity between 40 to 60 percent.

It can be challenging to overcome heat and humidity, particularly when building occupants are very young, elderly, or disabled. The key to maintaining healthy indoor air quality is observing building occupants and controlling the environment safely.