This device is intended for an elderly person suffering from eye allergies especially during the heating period in winter and spring during the high emissions of tree pollen in the neighborhood. As the technical and maintenance a little complex of such a device can only be assured by the person himself, it was essential for me to have a complete range of about three days, maximum time between visits I assure her home. As much announce immediately the color: I am delighted with the operation and effectiveness of this device. It is really easy to adjust the operation of this unit is fully automatic. The tank could not be simpler, I am lucky to find myself in an area or city water is very calcareous, I think this can only be an additional asset for life the craft, so no matter distilled water (the manual evokes nothing about it, few balls in the filter suggest a dabsorption limestone system). Unscrewed the gas cap is filled under the tap is closed, it is very simple. Once the tank is placed on its support, following happens without any difficulty, the wireless industry is plugged in decision and go for settings! Personally hygrometry I find the most comfortable is of the order of 40 to 45%. So I very simply set the trigger to 45%, no problem. The tank, placed in these conditions held three full days without problems, this is the result I expected. Ocular allergies are significantly attenuated, they will have completely disappeared within days. The difficulty sometimes lies in the fact that in case of accidental power failure (storm ..) the unit starts off at once without restarting the restored electricity. In a light vapor cruising speed (as that seen spraying vegetables in stores) escapes from above and brings the moisture necessary complement to the play of balance, it stops when the ambient air is at the right level. I put it in a corner of the living room, once we forget, simply ensure that everything is in order every three days is not very restrictive. Water consumption seems to me not too large, it is true that climatic conditions are currently the worst, they are average. Good camera, little noisy, very simple, reliable and efficient.