Purely Products Ionic Purifier Negative Ion Generator for Home and Office (White) Simply plugs directly into any wall outlet in your home or office LED indicator light lets you know its on and working Generates 2 million negative ions per cubic centimeter without harmful ozone emissions Cleans the air by reducing dust, pollen, pet dander, smoke, fumes and odors Increases the flow of oxygen to the brain helping to boost mood, energy and alertness