We love a nice USB gadget as much as the next guy, but we have to draw the line when it comes to USB gadgets for the car. Understood, it can "[circulate] millions of negative ions inside your car or open area", and it can "remove many types of particles & pollutant [sic]", but where the hell are you going to plug this into? Are you going to take your laptop into your car just for this? Well, maybe you can make yourself a portable USB charger.
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The upside is this also "works" in the office. So we suppose you can just keep it indoors.
IAP565A Car & Computer Air Purifier [via Coolest Gadgets]