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