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Dyson's latest fans can purify air without blowing at you
In addition to its Cyclone V10 cordless vacuum, today Dyson also unveiled its updated air-purifying fans. The new Pure Cool tower fan (TP04) and desktop fan (DP04) models may look familiar from afar, but in fact, they are slightly taller and wider than their predecessors -- and for a good reason. First off, that line right down the middle of the Air Multiplier loop is a slit for the new diffused airflow mode. This lets the machines continue to purify air effectively without having to blow air at people, thus solving the old dilemma of whether to turn on the machine on a cold, smelly day (though you can always wait for a potential heater variant from Dyson). There's even a dedicated button for this mode on the infrared remote.
Dyson's new bladeless fan is also a powerful air filter
Dyson really hates dirt, to the point that it's now come up with a new bladeless fan that can also filter out ultrafine airborne particles -- including viruses, bacteria and pollens -- that are as tiny as 0.1 microns. The aptly-named Pure Cool (AM11) closely resembles Dyson's other fan towers, with the notable difference being the cylindrical glass HEPA filter around the base. After 450 prototypes, the company claims that this filter removes 99.95 percent of ultrafine particles, and it's good for up to 4,382 hours or about six months of continuous use. In other words, if you use the Pure Cool for 12 hours each day, then you'll only need to replace the filter after a year. Of course, it's hard to say whether it'll last just as long in smoggy Beijing, which is where Dyson cleverly chose to do the global launch for the Pure Cool.
