How To: Build a USB Laser Air Purifier

Here’s something for all the cleanliness freaks roaming the Internet, a USB powered air purifier using 4 lasers. You’ll need a mini DVD disk, a PC fan, USB cable, and some laser pointers. The idea behind the design is that laser destroys the bacteria in the air. If that doesn’t work it at least makes a really cool desk lamp.

Frank's the editor in chief of tech.nocr.at. He can be found surfing the internet and playing with gadgets. Follow him on twitter @franklinhares