Keep your indoor air quality pristine with the Sharper Image Ionic Breeze SI837 Quadra Silent Air Purifier. This tower-style purifier in sleek black color features ozone guard technology and uses ionic filtration technology to remove particles and impurities from the air. Its silent operation ensures it won't disrupt your home or work environment while you enjoy the benefits of cleaner air. With a brand name like Sharper Image and model number SI837, you can trust this purifier to keep your air fresh and clean.