Are there any of those Japanese ones you can buy in North America? Any brands you're aware of?
yeah, i'm curious as well.
In America KC-850U: https://www.amazon.com/dp/B003BF665Y/ref=emc_b_5_t
In Japan KC-H50-W: https://www.amazon.co.jp/gp/product/B077TC5PM8/ref=ppx_yo_dt...
The American offering is an extra 150$, but that buys you marketing videos with a fake scientist pouring baby powder through a filter onto a hepa filter. Japan gets no video at all. Otherwise the Ozone generator, carbon + hepa filters, wheel driven wick humidifier, and canister water tanks are all the same.
The Japanese model also includes modes to disable all lighting, switches between displaying humidity or energy consumption in either KWh or yen per day.