The Ionic Pro TA400 Turbo Max Ionic Air Purifier purifies the air in total silence and effectively moves the air without noisy fans, resulting in purified, invigorated air. Removes allergens such as pollen, dust and pet dander; irritants, such as smoke, odors and pollution; and destroys cold and flu viruses, mold spores, staph and strep bacteria. No expensive filters to replace and the specially designed front-loading collection blades are easy to clean - just wipe the blade. 3 fan speed settings. For medium to large size rooms.