Cleaner Air Spaces Act of 2025This bill requires the Environmental Protection Agency to provide grants to air pollution control agencies, including at least one tribal agency with jurisdiction over air quality, to implement cleaner air space programs (i.e., programs to provide clean air to the public during wildland fire smoke events). Generally, such programs must be located in areas at risk of exposure to wildland fire smoke and must help provide educational materials, clean air centers (i.e., one or more clean air rooms in a publicly accessible building), and air filtration systems to certain households. Clean air rooms are rooms designed to keep levels of harmful air pollutants as low as possible during wildland fire smoke events.Under the bill, air pollution control agencies must partner with at least one community-based organization in implementing such programs.