How to Dispose of CFL Light Bulbs

Compact fluorescent light bulbs, or CFLs, use less energy, produce less air pollution and last longer than standard bulbs.

What’s not to love?  Well, one thing: CFLs contain mercury.  It’s a very small amount but enough to still require special care when disposing of the spent bulbs.

The National Electrical Manufacturers Association reports that the average mercury content in CFLs has dropped by about 20 percent in the past few years—a trend that’s expected to continue.

When your CFL burns out, remove the bulb carefully by unscrewing it from the base.  Take bulbs to a recycling center or hazardous waste facility, or, if your local regulatory agency permits you to put them in the trash, seal the bulbs in two plastic bags and place in the receptacle.

If you have a broken CFL, you’ll want to take extra precautions:

• Open a window and clear the room of people and pets for at least 15 minutes.
• Wear rubber gloves when cleaning up broken parts. Don’t use a broom or dustpan. Instead, clean up with stiff paper or cardboard. You can also use sticky tape to pick up small bits and bulb powder. Wipe the area with a damp paper towel. (To be cautious, vacuum the area after you’ve wiped it down and then dispose of the vacuum bag.)
• Put all the broken pieces and cleaning materials in two sealable plastic bags. Wash your hands when you’re done.
• If local regulations permit, put the sealed bags with broken CFL debris out with the trash. Otherwise, you may need to take the bulb to your local recycling or hazardous waste disposal facility.
• Shut off the central forced-air heating/air conditioning system, if you have one.
• Continue to air out the room for several hours after you’ve cleaned up.

Learn more about CFLs and proper handling of the bulbs at energystar.gov.