ventilation

nouns

the act of supplying fresh air and getting rid of foul air
is derived from
is derived from
a mechanical system in a building that provides fresh air
"she was continually adjusting the ventilation"
is derived from
is derived from
free and open discussion of (or debate on) some question of public interest
"such a proposal deserves thorough public discussion"
is derived from
the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation