When unpacking, I was disappointed as the First Appearance. The figures suggest an Amazon (with the exception of the black front) white housing, actually (not hip today) reminds the color but more to the classic PC Beige after it has darkened a few years in a smoking office ... Nice is different ,
Second, the interface is neither beautiful nor ergonomic. The biggest annoyance is a completely useless, flashing animation faster or slower depending on the selected fan speed is flickering, but annoying in any case. Simple LEDs for the three speeds would be meaningful and have been discreet. There is a bedroom-mode, in which only a single indicator lights, but this is not annoyingly directly selected, but will turn on only the motion. This in turn does not follow a discernible logic (does not seem to be switched off), sometimes talking and sometimes not, thus activating alternatively the bedrooms mode on or off - rather pointlessly.
Annoying also that there is only one mode key that you therefore must press up to 7 times to switch to the desired operating mode. On the remote control, however, there are fortunately some keys for ionization, UV and ozone - why not on the device? The Fernbedieung is in fact equal to the next scandal, because the buttons respond sometimes and sometimes not - despite new battery and always the same (short) distance to the unit.
Completely useless seems to me the sensor function, the judges reportedly air quality. I I've already experienced that the quality was initially assessed as "good", after a long filter cartridge at full power (overnight) then but as "poor", although no one was in the meantime in the room.
Biggest gripe is for me, however, the operating noise that is so clearly audible even at the lowest power (bedroom mode) nor that, the loudest noise source is in my office, which run two (soundproofed, but clearly audible) PCs. Especially the noise has high frequency components that stand out clearly. An operation in the bedroom I can not imagine it. People who are not as sensitive to noise as I like the feel differently.
Conclusion: Most likely a device for continuous use in an inconspicuous area (hall), where you can not see it, does not listen and does not have to operate.
