BioSphere 2 is an American Earth system science research facility located in Oracle, Arizona. It has been owned by the University of Arizona since 2011. Its mission is to serve as a center for research, outreach, teaching, and lifelong learning about Earth, its living systems, and its place in the universe.
Arizona's harsh elements wreaked havoc on the BioSphere's glass panels for several years.
The window crew spent nearly a month cleaning more than 4,000 of the BioSphere's windows with over 1,000 gallons of OneRestore and 10,000 gallons of water. The results...well, they're clear to see!