Perfected Maintenance With one click, the fan and motor can be removed for easy cleaning! Perfected Construction Double-walled with integrated niches for the disk stacks. No nooks and crannies to clean between! Benefits you can see and feel every day. Unique technology without filter pads. Important Notice for Perfect Air Purification Compare with Any Competitor The cold evaporation system used by the Venta-Airwasher is the only evaporation system in the world which is based on a brilliantly simple technology without filter pads. Revolutionary, worldwide unique technology. Two appliances in one. No bacteria-ridden filter pads. Very hygienic, very quiet. No smells from moldy filters. Super-easy maintenance. Lifelong investment. No costs of replacing filter pads. Automatic shutoff when water is low (Plus models only). Refill indicator light (Plus models only). 2-year limited warranty. Benefits you can see and feel every day. The humidifying and purifying efficiency of the Venta-Airwasher can be monitored daily: 3-6 gallons of water are used daily to humidify the air in dry, heated rooms from 180-2800 sq.ft. Dirt and dust particles adhere to the disk stacks and are collected in the lower housing. Unpleasant odors, such as stale tobacco smoke are easily eliminated. By adding fragrances, the effects of the Venta-Airwasher can be easily observed. As the fragrances fill the room, you know that the airwasher is working effectively Unique technology without filter pads. Compared with other humidifying and purifying systems, such as vaporizers, ultrasonic misters, and evaporative systems that use filter pads, the Venta system of cold evaporation has enjoyed rapid market success. Though the Venta-Airwasher is relatively small, stacks of disks rotating in the water offer more than 5 square yards of surface area. This is more than the surface area of the water in two bathtubs - providing maximum humidifying efficiency. Important Notice for Perfect Air Purification Dry indoor air is difficult to clean; every movement causes millions of particles to be stirred up and become airborne. However, humidification keeps a large number of airborne particles down on the floor; making the two-in-one humidifier/purifier more effective than air purifiers alone. The Venta Airwasher humidifies the air while simultaneously drawing in and removing dust, pollen and other contaminating particles down to 10??? (10/1000 mm) in size from the air.