Human Respiratory System Model, Half Life Size, with Head, Throat, and Lungs Ag Mechanics and ungraduated design for liquid

and ungraduated design for liquid addition

this clear dial provides a readable face for measuring angular displacement in physics setups

75 inches of plunger travel

dropping freely through the ring when cool but stopped by the ring once flame heating expands the ball

1000mL CAPACITY || Single Erlenmeyer Flasks with 1000mL capacity and easy-to-read white enamel graduations every 200mL

Human Respiratory System Model, Half Life Size, with Head, Throat, and Lungs Ag Mechanics and ungraduated design for liquidLongitudinal head throat lung cross section reveals the full air pathway from nostrils through trachea to alveoli at half life size for respiratory teaching.