What is formaldehyde, and what products used in my home may contain it?

Formaldehyde is a colorless gas used in home building materials and household products. It is also a by-product of burning fuels and other natural events. This means it can be present in high levels both indoors and outdoors.

In the home, pressed wood products are the major source of formaldehyde. These products are used for shelving, in cabinetry and furniture, and in hardwood and plywood paneling. Medium density fiberboard is the greatest source of formaldehyde in pressed wood products. Other sources of formaldehyde in the home include:

• building materials
• smoke
• household products
• use of unvented, fuel-burning appliances, like gas stoves

The health effects of formaldehyde can range from watery, burning eyes to nausea and trouble breathing. High levels may trigger attacks in people with asthma. It has also been shown to cause cancer in animals and may cause cancer in humans. Take these steps to reduce your exposure to formaldehyde in your home:

• Ask about the content of pressed wood products before you purchase them. This includes building materials, cabinets, and furniture.
• Keep your home at a comfortable temperature with good ventilation. Formaldehyde is released faster in hot conditions.