Bad indoor climates in schools negatively affect learning. Ozi Air may assist in learning. Better air helps workers and students think better, and improves productivity and health. Many studies have shown the importance of ventilation and fresh air in the workplace.  Clean, fresh air has been shown to reduce sick building syndrome and people taking days off for illness. Sick building syndrome, caused by poorly designed and ventilated buildings, includes symptoms such as eye irritation, headaches, coughing and chest tightness.