The fountain works with a small, energy-efficient pump that is described as quiet, however, some employees report an audible buzzing or humming of the pump, which can be perceived as annoying. An exact decibel value (dB) is not specified by the manufacturer.
Hi Hanna, I'm not a biologist or anything. But the fountain doesn't keep the water any fresher than when it's in a bowl. It's not cooled. We change it every 2 days. But the well also has to be cleaned and decalcified from time to time. Greetings Andx