Working up a sweat from those late night World of Warcraft sessions? Yens Electric's USB Negative Ion Generator can't help your social life, but it might be able to do something about the smell.

This USB-powered device can neutralize smells. It also helps remove dust and dirt from the air, and, according to the company, "neutraliz[es] positive ions, defer[ring] human fatigue.

The little box outputs more than two million ions per cubed centimeter.