Five Steps for Safer Schools and Workplaces A focus on indoor air quality (IAQ) is critical to mitigating the spread of airborne pathogens, including the virus that causes COVID-19. The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) is working to ensure safety, comfort, and productivity for all by providing access to information and resources that help improve IAQ and minimize the risk of COVID-19 transmission indoors. Here are five steps for building managers, educators, and families to consider: 1. Find a qualified contractor 2. Ensure proper ventilation 3. Improve filters 4. Try UV treatment 5. Control humidity