The first step to a healthy environment is clean air. The Ionic Pro traps airbourne allergens like pollen, smoke, dust and pet dander on three collection blades and then releases purified air back into the room. In fact, it traps particles as small as one micron. Since it has no loud motors or fans, the Ionic Pro cleans air silently. Its advanced air filter never needs to be replaced. Simply remove the stainless steel blade assembly and wipe clean. Energy efficient design tackles rooms up to 500 square feet. 10inW x 11-1/2inD x 29-1/2inH. One-year limited warranty. UL listed. Imported.