A 2025 BMJ Oncology study by Roselle De Guzman and Joan Schiller digs into over two decades of research, from 2000 to 2024. It looks at how indoor air pollution affects U.S. homeowners. The findings point to a clear problem: the air inside your home can carry cancer risks.

This study examines how formaldehyde, a chemical in indoor air, impacts health in homes across China, with key takeaways for U.S. homeowners. Formaldehyde comes from building materials like plywood, particleboard, and furniture, especially in newly renovated spaces.