The Corsi-Rosenthal Foundation is a UK registered charity dedicated to improving human health by promoting and helping to provide cleaner indoor air. It highlights how indoor pollution—including viruses, bacteria, allergens, smoke, mould and chemicals—can affect health, and explains why cleaning surfaces alone is not enough. The Foundation advocates a practical approach: ventilate indoor spaces and use air cleaners that filter polluted air.

Its work includes campaigns to build support for clean indoor air and initiatives to help schools improve the air in their buildings. Schools can find guidance and request help, while individuals and organisations can access scientific information, practical advice, advocacy tools and educational articles. Donations support the delivery of air cleaners to people who cannot afford them, with priority given to those particularly vulnerable to indoor air pollution. Donations are used in the United Kingdom, and most are tax deductible for UK taxpayers. Registered with the Charity Commission for England and Wales, the Foundation operates as a not-for-profit organisation and emphasises transparency and responsible governance.