# Ventilation airflow
# Scope: Well-defined room volume and volumetric ventilation rate.
# Status: illustrative worked example; engineering review pending.
# Inputs are example values. Checks are editable example requirements, not standards.

flow = 200 m^3/h
length = 5 m
width = 4 m
height = 2.5 m

volume := length*width*height [m^3]
changes := flow/volume [h^-1]

check ventilation target example: changes >= 3 h^-1

scenario alternative: flow = 160 m^3/h