In a launch presentation in Tokyo, Japan (apparently the company's favorite place for new product launches), Dyson tackled the surprisingly sketchy hygiene issues that come with more typical humidifiers. To prove how gosh-darn better Dyson's Hygienic Mist humidifier is, the company's microbiology team (which of course it has) incubated water with bacteria to see how a typical humidifier transmits that to a room. A selection of agar jelly plates grossly demonstrated how that bacteria spreads around a room. However, in an early comparison, with the same concentration of bacteria in the water, Dyson's test humidifier, with UV light cleansing the water, knocked out 99.9 percent of the bacteria -- the current model manages this in three minutes. The device launches in Japan in early November, priced at 60,000 yen (roughly a hefty $560) and we've got the rest of the engineering details after the break.