Coleman Cool Zephyr Window Fan

Features: Dimensions: 10.5”H x 10.5” diameter. Fan includes soft-to-touch foam blades. Six D batteries required - batteries not included. Fan can stand alone using legs built into magnetic plate. Fan installs inside tent to pull fresh air in, or outside tent to pull stagnant air out. Approximate run time is up to 20 hours on high or 40 hours on low using the battery pack.