The "sponge" seems to be machine washable. I did not dare, I wash by hand and soak in bleach. As long as it's enough. Replacements, unfortunately, are not sold. Pros below: Powerful washer. Yes, it is declared as a sink, but in fact it is a humidifier. A full tank in quiet mode evaporates in 0.5-1.5 days, depending on air humidity. The remaining water on the tray, which the sink is no longer able to scoop out, is permanently yellow. The most important thing for me is that with such activity there are no puddles on the floor, as from ultrasonic humidifiers! Some cons: The sink does not have a hygrometer. If I close the door at night, there will be an Amazon basin in the room, no less. Maybe this is because the main function is still air purification, and not humidification? Behind the washing tank and the type of sponge that is stretched over the drum, you need an eye and an eye. Both of them are willingly overgrown with all sorts of nonsense, so once a week (according to the manufacturer), and in fact once every 3-4 days, you need to wash everything, check for extraneous thickets and wipe off mucus.
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