The Berkeley Unified School District teachers and staffs generously offered their time and assistance in facilitating the evaluation of carbon dioxide sensors in classrooms. 

We also thank the following members of the project advisory committee for their advice and reviews of draft documents: Mark Alatorre, Leon Alevantis, Roger Hedrick, John Murphy, Adam Salvadalena, Jeff Siegel, and Steve Taylor. 

This work was supported by the Department of Energy under Lawrence Berkeley National Contract No. DE-AC02-05CH11231. Other LBNL staffs who provided assistance in identifying and coordinating study spaces for this research include Susan Synarski, Ron Scholtz, Lisa Hunt, Morgan Faulkner, Steve Greenberg, and Mark Friedrich. In addition, Priya Patel and Taylor Lyon also worked on this project as student interns supported by the Department of Energy's Science Undergraduate Laboratory Internships program.