School project, letter from fifth-grader launch DIY air filter high-tech biochamber testing

The national movement urging the use of the inexpensive, build-it-yourself “Corsi-Rosenthal” box air purifiers to easily remove unhealthy air particles from indoor community settings like classrooms and homes has been growing from the University of Connecticut to across the country—and now all the way to the U.S. Environmental Protection Agency’s (EPA) Homeland Security Division Laboratory for high-tech, advanced biochamber research testing of this device.