Brookstone Ultrasonic Pest Repeller & Air Purifier

High frequency, ultrasonic waves effectively drive away mice, rats, spiders, roaches, mosquitoes, rodents, bedbugs, moths, ants, etc. • Non-toxic, harmless; no chemical reagent • Eco-friendly– no poisons, chemicals or traps • Produces negative ions (02-) cleans and purifies the air • Help eliminate smoke, dust pollutants and pet dander • No filters to replace, no refills needed • Helps circulate air flow • Three operating fan modes • Plugs into any wall outlet ready to use • Effective range up to 1950 square feet