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  1. Facts About Formaldehyde | US EPA

  2. Formaldehyde - Chemical Safety Facts

  3. What should I know about formaldehyde and indoor air quality?

  4. Formaldehyde - WHO Guidelines for Indoor Air Quality: Selected ...

  5. Formaldehyde - California Air Resources Board

  6. Formaldehyde: Toxicity, Everyday Exposure, Cancer Risk

  7. Formaldehyde: general information - GOV.UK