Human respiratory system model with magnified alveolus lung model

Showing the whole respiratory
canal:from mouth and nasal
cavity,larynx, trachea,
bifurcation of trachea and the
bronchial tree inside the lung.
An alveoli about 150 times
enlarged is provided. Its
enlarged microscopic structure
help illustrate the interchange of
CO, and O.Made of High Quality
PVC. Mounted on a base.