Great for the greenhouse

First of all you should get a hygrometer and up in the room.
This shows 50% or more, it does not need a humidifier. Displays this below 40% then is a humidification advantageous. There are then the device Medisana AH 660th

This device holds 4.5 liters and moisturizes the room with about 300ml per hour. The water tank can be removed for filling and a rotary control provides manual adjustment of steam power.

There are areas (eg in the wellness area or to create a climate for certain plants in a greenhouse to optimize) where so sure a device finds its application. In addition, can be counteracted by the addition of essential oils of a cold.

What I liked:
- The unit makes a tidy impression processed and works 'almost' silently.
- In winter, the device is well suited to moisten dry air. Respiratory disease, dry eye and for the skin is the highly recommended.

What I do not like:
- Unfortunately, there is no way to determine the degree of humidity. This must be carried out manually with an optional hygrometer.

Conclusion: I give the device 4 stars. A hygrometer can be purchased from 12 euros, set the machine itself at will. Price performance is really very good.

A few tips: A humidity between 45% and 65% is optimal for humans. Extremely tight windows ensure that nowadays even more needs to be lifted to lower extremely high humidity in rooms. Mir has been no budget come across where the humidity was persistently below 40%. At low humidity can be easily remedied by airing (outside Germany is in the humidity in the summer months, usually at 50-70% depending on weather conditions). Actually such a device makes sense only in the winter, where the humidity of a few days may be less than 40%. There but then other possibilities. Place a water container on the heater or to hang a damp cloth. So then you will not only save electricity, the cost of the equipment also fall away.

Applying the Medisana AH 660 too often and reaches a constant humidity above 70% which is also very damaging. Mold growth may occur and walls and furniture are moist, which in turn affect the well-being of the people, thereby ensuring an even worse effect, to live a few days with a lower humidity than 40%.