• Visually demonstrates how a pair of lungs work using lung shaped balloons and a diaphragm model
• Durable plastic housing prevents breakage and ensures long lasting classroom use
• Includes instructions for easy setup and guided demonstration of lung mechanics
• Features an extra pair of interchangeable balloons to compare inflation and airflow
• Ideal for STEM biology and anatomy lessons in classrooms laboratories or homeschool science

This basic lung apparatus is designed to demonstrate diaphragm function, lung expansion, and air movement during breathing. The model uses lung-shaped balloons inside a clear plastic housing to show how changes in pressure and volume affect airflow in a simplified respiratory system.

The apparatus provides a visual way to connect biology and physical science concepts. As the diaphragm model moves, students can observe how the lungs inflate and deflate, helping illustrate the relationship between air pressure, volume change, and respiration mechanics.