VENTILATOR

ventilator. Ventilator, n. an instrument to supply fresh air

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Ven″ti‐la′tor (?), n. [[Cf. F. ventilateur, L. ventilator a winnower.]] A contrivance for effecting ventilation; especially, a contrivance or machine for drawing off or expelling foul or stagnant air from any place or apartment, or for introducing that which is fresh and pure.