I don't have a hygrometer. But 4.5 liters of water evaporates per day at medium speeds. This means that the humidity rises in the room. A lot of dust is condemned on the first grid and on the second (metal), and also dust remains in the container. Home has become much more comfortable. This is very important, given the fact that children are at home (running around and kicking up dust), the wife loves to vacuum, and there is still a cat. Breathing easier, sneezing less. I wash my container once a week. Grids - twice a week. But the device would be even better if the manufacturer came up with a filler neck so that each time the "head" would not be removed. Small wheels would not hurt, so that women could roll if necessary, roll the device from place to place.
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