One should always have a hygrometer in the room, which indicates the current humidity. Dry mucous membranes and irritated eyes are often caused by a too low humidity. In particular, at the office or in an environment with little fresh air from the outside comes before that.
I use multiple humidifiers in the different rooms to keep the humidity in winter more than 55%. In summer I need a humidifier, as the window is often open and the heating is off. I've been using for the humidifier distilled water or osmosis water because it no lime is included.
With 20m² of my living room the Medisana AH 660 humidifier has no problems. He keeps the indoor air to a comfortable level in the range 55-60% humidity.
Conclusion
For me, the Medisana AH 660 humidifier is a good product, because the device does not practically hear, it has a removable water tank and can be adjusted in the vapor dose. The Stromverbraucht is quite ok. How does the humidifier on time, we will see.
