The device is a hollow enclosure, similar to a hollow tube shape with openings on either end. The openings are covered by a fine screen, to allow air to pass through the center of the device. Further, a small fan is installed in the center of the device, allowing to suck air in from one side, and blow air out of the other side. The device is then placed into a terrarium, vivarium, or similar pet or plant cage to create internal air circulation within the environment.
