The bill aims to improve indoor air quality in buildings, particularly schools and childcare facilities. It establishes a program to assess, reduce, and avoid exposure to indoor air contaminants, including research, education, and monitoring efforts. It requires the establishment and maintenance of a list of indoor contaminants of concern and the publication of guidelines for each one and aims to develop a science-based indoor air quality index. The bill also provides for voluntary certifications for healthy buildings, model provisions for building design and maintenance, and financial assistance to improve indoor air quality. It authorizes $100 million annually for these efforts from 2026 to 2030.