American Educational Lung Demonstration Kit variable 30 to 50W temperature

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American Educational Lung Demonstration Kit variable 30 to 50W temperatureLung 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