Product review: Venta Airwasher 2-in-1 Humidifier & Air Purifier - LW45

Our heating is forced hot air and the air gets very dry. I used a variety of humidifiers through the years and it was always a compromise between the noise and improved air quality. On the low setting Venta air washer is so quiet that I had to keep checking if was on or not when the first time I was using it. On medium and high level I can hear some white noise but it is still very quiet. I am a light sleeper and this humidifier on the low settings is really the only that does not bother me when I am trying to fall asleep. On the negative side to keep Venta air cleaner going you need to treat the water it uses continuously. This is done with Venta treatment additive. Two small starter bottles are included and Venta LW45 requires the use of both bottles at the same time. These two bottles are sufficient for 10-14 days of use. The additive is available in a larger 35 fl. oz bottle which is sold for $19.00 (sufficient for 5 months use). In addition every 6 months the airwasher needs to be...