Unlike air purifiers that use replaceable costly filters to clean the air in the home, this one uses a different approach. The Filterless Air Purifier emits billions of electrons that attach to impurities in the air and converts them to negatively charged ions. These impurities, which can be allergens, smoke or dust particles, gravitate and bond to the collection tube which is positively charged.
According to the description, the air purifier can clean an entire 540’ sq. room within 5 hours. Another cool thing is that the device is silent, producing only 5 db, which is half the sound level of normal breathing.
You can clean the collection tube by removing and washing it with water once a month. The air cleaner works while plugged into AC. You can buy it from Hammacher Schlemmer for $299.95.