Ventilator n. : 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.

Example:
Where can I buy a new Ventilator for my Inspiron 6000 laptop?

Taxonomy
ventilator, ventilation, mechanical ventilation, pressure, models, Medical ventilator, 06-04, patients, Mechanical ventilators, circuit, bellows, lungs, free encyclopedia, pressure ventilator, respirator, SERVO, turbine, gas.

Defination from the web:
ventilator may be defined as any machine designed to mechanically move breatheable air into and out of the lungs, to provide the ... In its simplest form, a modern positive pressure ventilator consists of a compressible air reservoir or turbine, air and oxygen supplies, a set ...