The Cleaner Air Spaces Act of 2025 aims to improve air quality in communities, particularly those at risk from wildland fire smoke. The main objective is to provide financial support to air pollution control agencies so they can implement programs that create cleaner air spaces and distribute air filtration units to vulnerable households. Key provisions of the Act include the establishment of a grant program managed by the Environmental Protection Agency (EPA). Agencies can apply for grants up to $3 million to develop cleaner air space programs.