A powerful air purifier that arranges its own little hurricane in the apartment. I like all the shape, size, color, screen. The display shows information about temperature, humidity, filter status. Half of the body is occupied by this very huge filter, which is somewhat similar in shape to an automobile filter, but very large. They say you can program the device from your phone to the operating mode that suits you, but I have not tried it yet. The machine works silently, some complain about the buzz, I did not notice. A fan, or rather a turbine, what kind of fan it is, it occupies the second half of the case, but it works in standby mode, rotating silently. In short, I was not too lazy, took out the filter and looked carefully again, it looks like there is a snail above the filter, and there is a fan on top, I won’t say 100%, but somewhere around 25-30 centimeters the thickness of the compartment with the turbine, there is something interesting there. I looked at the dismantling of a small cleaner, there were two fans, probably oncoming ones. What else, when you open the filter door, the device turns off so that you don’t put your fingers in the blades. In general, the device is so simple, complete, thoughtful, a workhorse. I like.