While compact fluorescent bulbs are known for saving money and energy, many do not know the dangerous downside of the bulbs. CFLs have hazardous materials in them.

Home Depot started selling the compact fluorescent bulb in 1993, but it was not until a few years ago sales really took off.

Fluorescent Bulbs Contain Mercury, Radon

In 2007, Home Depot sold 75 million CFLs from its 2,000 stores, proving consumers are looking to save money.

“Everyone is saying 'hey you have to do this because it lowers your electricity bill,'” said Home Depot department head Dennis Murray.

Many CFLs advertise a nine-year warranty and come with the Energy Star rating, but what should be done with the bulbs when they die or break?

Fluorescents contain mercury and radon, which are hazardous and poisonous materials.

The Home Depot is now the first major U.S. retailer to offer free recycling of CFLs. The store will accept unbroken bulbs at its service desks.

In addition to its free recycling program, the Home Deport has pledged to swap out the millions of bulbs in itsdisplays and store fixtures with CFLs within the next few months and is hoping other stores will follow its example.

Ikea now offers free CFL recycling, too.

If you break a CFL bulb, do not touch it. Call the toll free number on the package or visit the manufacturer Web site.

CFLs are safe and will save you energy and money. Just keep the green themes going when they fizzle out by recycling the bulbs.