Get Out of That Stuffy Room if You Want to Have an Effective Meeting
by Beth Skwarecki on Vitals, shared by Beth Skwarecki from Lifehacker on (#4GK3D)

We humans breathe in oxygen-you probably knew this-and we breathe out carbon dioxide. In an enclosed space, it's possible for carbon dioxide to build up in the air. Some research shows that meeting rooms and classrooms may be enclosed enough to reach mind-numbing carbon dioxide concentrations.