Dyson Put a Filter In Its Bladeless Fan To Cool and Clean a Room

Following up on its first humidifier that used a UV light to kill germs in its water reservoir, Dyson has just announced an updated version of its Cool fan that now includes a built-in 360-degree glass filter to remove 99.95 percent of airborne invaders in a room. And not just any filter, but a high-efficiency particulate arrestance--or HEPA--filter as regulated by the U.S. government making it as effective as you can get in a consumer-grade appliance.