The lung demonstration model displays the breathing process with two balloons in a clear container. Includes a bell jar, balloons, a latex sheet and a rubber stopper.
Students can demonstrate how the lungs work with this transparent lung model. Constructed of two rubber balloons, rubber stopper and bell jar. Pull the thin rubber diaphragm at the bottom of the jar down to see the lungs inhaling. Push it in and the balloons will collapse (exhaling)