The all black aesthetic, Air quality visual LEDs (in theory), The light button which turns off all LEDs, The white noise effect while sleeping,
I'd supersize the warning label about removing the filter plastic bag before using and put it over the power connector so you can't start the unit without removing the sticker
The Partu BS-10 HEPA Air Purifier is a powerful performer. I like the idea of colors indicating air quality but the light show is over the top. Luckily they included a LED blitz button which all but eliminates any complaint. I'm waking up without allergy...
