American Educational Lung Demonstration Kit 999 units (3-3/4 digits) before

999 units (3-3/4 digits) before the operating range needs to be changed

The American Educational lung apparatus is for studying relaxation and contraction of human lungs

Frees hands for safe soldering

You get 256 building pieces to assemble 22 models include a scooter

American Educational Lung Demonstration Kit 999 units (3-3/4 digits) beforeLung demonstration kit The kit includes a transparent plastic container, y tube "trachea", balloon "lungs", rugged rubber sheet "diaphragm" and the necessary hardware and instruction sheet Allow students to build a demonstration model of a human lung and learn the basic concepts of respiratory physiology Allow students to build a demonstration model of a human lung and learn the basic concepts of respiratory physiology. The kit includes a transparent