Potential Billions in Revenue for VirExit Technologies with Advocacy-Endorsed MaxClean 756 Air and Surface Purification System. With 50 Million Public School Students and 3 Million Teachers at Risk for Negative Health Effects Across 19,200 School Districts and 98,600 Schools , MaxClean 756 Emerges as Cost-Effective, Energy-Efficient Solution to the Crisis Highlighted by the White House Indoor Air Quality Initiative and State Executive Orders