Ventilation

Ventilation may refer to:

Ventilation (physiology), the movement of air between the environment and the lungs via inhalation and exhalation
Mechanical ventilation, in medicine, using artificial methods to assist breathing
Respirator, a machine designed to move breathable air into and out of the lungs
Ventilation (architecture), the process of "changing" or replacing air in any space to provide high indoor air quality
Ventilation (firefighting), the expulsion of heat and smoke from a fire building
Ventilation (mining), flow of air to the underground workings of a mine of sufficient volume to dilute and remove noxious gases

See also