+Ventilation is the deliberate circulation of [Air](/wiki/Air), replacing stale indoor air with fresh outdoor air. This fundamental process is crucial for maintaining healthy [Indoor Air Quality](/wiki/Indoor_Air_Quality) and ensuring thermal comfort within enclosed spaces.
+## See also
+- [HVAC](/wiki/HVAC)
+- [Air Conditioning](/wiki/Air_Conditioning)
+- [Duct](/wiki/Duct)
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