Formaldehyde is a colorless, strong-smelling gas used widely in manufacturing. It's classified as a known human carcinogen by the International Agency for Research on Cancer (IARC).
Common sources of formaldehyde in homes include:
- Pressed wood products (plywood, particleboard, MDF)
- Some permanent-press fabrics
- Some paints and coatings
- Some cleaning products
- Combustion sources (gas stoves, fireplaces)
Short-term exposure can cause irritation of the eyes, nose, throat, and skin. Long-term exposure has been linked to certain types of cancer, particularly nasopharyngeal cancer.
To reduce formaldehyde exposure:
- Choose solid wood or formaldehyde-free pressed wood products
- Look for CARB Phase 2 or NAF (No Added Formaldehyde) certifications
- Ensure good ventilation
- Avoid products with strong chemical smells