Impact of Low Humidity on Indoor Air Quality in Schools
It is the time of year when the weather turns colder. As cold air can hold less moisture, as it becomes colder outside, the air dries out. This dry outside air is then brought into schools through open windows and doors or by mechanical air handling systems, as it does throughout the year. However, because the air is dry it may have a negative impact on school occupants, both staff and students. Eyes can be dry and irritated, skin can be dry and itchy and noses and throats can be dry and feel irritated. Nosebleeds can be more frequent. This is the indoor environment in many buildings during the winter.
Knowing that the air is dry, it is recommended that school occupants continually sip water throughout the day both at home and school. In addition, because dry noses and throats can make people more susceptible to germs, frequent hand washing is encouraged.
Awareness of low humidity and a few simple steps can help make the winter months more comfortable for everyone.