Web Definition: Ventilation
Ventilation is air circulation between a room, a tunnel, etc & the air outside. When people or animals are present, ventilation is especially necessary to remove the carbon dioxide produced & renew the oxygen used up. It is needed additionally if pollution takes place, eg by smoking, painting, etc If there is something burning more oxygen is replaced by carbon dioxide & more ventilation is needed. If there is a chimney than the additional need of ventilation just refers to replacing the air that leaves through the chimney with fresh air. Ventilation is also needed for removing water vapor, produced by breathing, burning & cooking & for removing smells, eg from a toilet or kitchen.
Read More »Dictionary Entry: The act of ventilating, or the state of being ventilated - the art or process of replacing foul air by that which is pure, in any inclosed place, as a house, a church, a mine, etc - free exposure to air.
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