In spite of all the minuses I have written here, I have paradoxically rated the product with five stars, because it is the best device in the price/performance ratio. You can start getting what this one can do for twice the price. And the devices that do what this one is supposed to do according to the advertisement, functions and box, manual, cost from 8 thousand and they are called air purifiers. here I was thinking: Whoa! So for the money, I'll absolutely take it. but I couldn't find the UVC radiation parameters or ionization anywhere, I asked the manufacturer, so they contacted me by e-mail with such a specific question and guess what? I haven't heard from anyone, of course. In other words, there is no indication that there is a UVC lamp or that it can ionize. you can't see anything, you can't feel anything, there is no documentation, the manufacturer refuses to answer. Despite all this, you buy a design-oriented piece here, which can be set up quite well with smart scenes on your phones. I have it on to set the warm water heating, activate the UVC lamp, activate the "plasma" by which they mean ionization, and set the humidity percentage. this is how the device works perfectly. it has sensors, it can regulate itself. only paradoxically not on pre-installed programs like auto or night, then you are in the morning like in the jungle and you look at your feet to see if some leeches are already living there. you're suffocating. but with the setting at 40% it somehow works quite nicely too, especially with the diffuser if it has just and or still works. Anyway, the UVC, Ionization and other things are probably more of an advertising scam on this, but if we beg off and just compare it to what's on the market here, unless you want a device around 10k and up, this is pretty good and it does pretty much everything a device in that category should do, plus it has everything nicely laid out, nice design and clever scenes where you can program in your various needs (resp. put in the rules). If you want something simple, go for those white boxes that look like quick-cookers and come out with a cold mist. and don't put anything in. And with unheated ultrasound steam there are also some problems maybe sometimes someone has. If someone could. to change my mind about the in my opinion non-functional UVC and ionization, definitely write to me. but tel somehow I know how it works and how it smells ionized air, so it will probably be difficult to put without some technical parameters ideal under certification.