Aside from that, smells and HE properties are attractively scattered throughout the room (used in a room of 20m²). The 100mL are too just to keep the maximum 3 in the product, it will either defer or put some more (at your own risk).
It is rather quiet, we hear a slight noise fan-type (no more no less than a laptop idling) and the lapping of the water is very small but nice.
I wonder still on ease cleaning and conservation in time ...