Formaldehyde
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Formaldehyde is a colorless, strong-smelling gas used in making building materials and many household products. It is used in pressed-wood products, such as particleboard, plywood, and fiberboard; glues and adhesives; permanent-press fabrics; paper product coatings; and certain insulation materials.
Exposure to formaldehyde has been shown to cause cancer in laboratory test animals. Exposure to relatively high amounts of formaldehyde in medical and occupational settings has been linked to some types of cancer in humans, but the effect of exposure to small amounts is less clear.
The EPA recommends using "exterior-grade" pressed-wood products to limit formaldehyde exposure in the home. These products give off less formaldehyde because they contain phenol resins, not urea resins. Before buying pressed-wood products, including building materials, cabinetry, and furniture, buyers should ask about the formaldehyde content of these products.
Formaldehyde levels in homes can also be reduced by not allowing smoking inside and by ensuring adequate ventilation (use your stove vent fan for example), moderate temperatures, and reduced humidity levels through the use of air conditioners and dehumidifiers.
People who are concerned about formaldehyde exposure from personal care products and cosmetics can avoid using products that contain or release formaldehyde. Still, because the amount of formaldehyde released from these products is low, it isn’t clear that this will provide any health benefit.
Formaldehyde can be listed on a product label by other names, such as:
- Formalin
- Formic aldehyde
- Methanediol
- Methanal
- Methyl aldehyde
- Methylene glycol
- Methylene oxide
Some chemicals that are used as preservatives can release formaldehyde, such as:
- Benzylhemiformal
- 2-bromo-2-nitropropane-1,3-diol
- 5-bromo-5-nitro-1,3-dioxane
- Diazolidinyl urea
- 1,3-dimethylol-5,5-dimethylhydantoin (or DMDM hydantoin)
- Imidazolidinyl urea
- Sodium hydroxymethylglycinate
- Quaternium-15
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