Schools can adopt several measures to maintain IAQ: 1. Regular Maintenance: Ensure HVAC systems are well-maintained and filters are changed regularly. 2. IAQ Audits: Conduct periodic IAQ assessments to identify and mitigate sources of pollution. 3. Education: Educate staff and students about the importance of IAQ and practices to maintain it. 4. Green Cleaning: Use eco-friendly cleaning products to minimize VOCs and other harmful chemicals.