#ventilator a device (such as a fan) that introduces fresh air or expels foul air
supertype: device an instrumentality invented for a particular purpose; "the device is small enough to wear on your wrist"; "a device intended to conserve water"
part: air_filter
part of: ventilation_system__ventilationsystem__ventilating_system__ventilatingsystem a mechanical system in a building that provides fresh air; "she was continually adjusting the ventilation"
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