Andy Pargh, the Gadget Guru, demonstrates the Viair 400P portable air compressor. The small compressor will fool you as it’s a fraction of the size of a typical air compressor but has enough power to inflate a full-size motorhome tire. RVtravel.com editor Chuck Woodbury travels with a similar model and loves it. In this 14-minute video, Andy thoroughly explains the unit and shows it in action. If you are interested in purchasing the compressor, it’s listed along with similar models at Amazon.com.