Introducing a light bulb and air purifier—all in one! Healthy CFLs have a built-in ionizer that cleans the air. Each energy-efficient bulb generates 1 million negative ions that attract airborne positive allergens like smoke, mold spores, dust and pet dander. These irritants bond with healthy negative ions from the Healthy CFL and become too heavy to remain airborne, and fall to the floor leaving the air in your home or office cleaner and healthier to breathe. Plus, studies show negative ions boost mood, energy and alertness.