Venta® Airwasher 7025436 Humidifier & Purifier, LW25G, GrayEngineered for tough jobs, portable air purifier captures airborne germs and particles and neutralizes them. LW25 Airwasher was built for outstanding air cleaning and humidification performance. Ventas patented disk stack system, which draws air into the unit and pushes it through sheets of water, washes dirt and dust out of the air, leaving nothing but clean, purified and humidified air in the surrounding indoor space. Airwashers were designed with