Introduction: Duct Camera for Exploring the Darkest Corners of Your House

By RTFMS.com : mods, hacks, rtfms
Can you imagine how many interesting things are hiding inside the ventilation duct in your house? Lost rings, coins, lego parts - it's all there! Not to mention dirt, dust and mold that go from the vents and right into your lungs. This video instructable explains how to build a $30 device that will reveal this world to you.