AirFlow Dually by OakLines. USB powered Dog Fans designed to work with the Ruff Land crate door. Powered by any standard USB port – use your vehicle power outlet a phone charger plugged into the wall or go portable with a USB power bank.

High volume low pressure air exchange simple and effective. Continuous AirFlow like a silent gentle breeze.

Project Details:
http://www.oaklines.com/Projects/Dog_...