Plants Maintain Perfect Humidity Levels
Dr. Virginia Lohr
(Washington State University, Pullman, Wash.) demonstrated that plant
transpiration in an office environment creates a humidity level exactly
matching the recommended human comfort range of 30% to 60%.
When the air is
too dry, people are vulnerable to colds and flu. When the humidity is
too high, people can develop other complaints. Through their natural
processes of transpiration and evaporation, office plants add moisture
to the dry overheated air often found in sealed office environments.
At the same time, studies show that plants do not add moisture in significant
amounts when the air is already moist. A study conducted at Washington
State University, suggests that plants help regulate humidity. When
office plants were added to the environment, the relative humidity stabilized
within the recommended "healthy" range of 30 to 60%.
to Interior Landscaping and Office Plants Benefits