Cleanstar employs state-of-the-art cleaning techniques and uses environmentally friendly disinfecting products manufactured by Green Klean. In consultation with HVAC professionals, systems in all buildings have been set to maximize fresh air and filtration. In addition, Medify MA-25 air purifiers including H13 True HEPA Filters are placed in every classroom. The medical-grade air filter removes 99.9% of harmful air particles.