Ventilator

1.

(any device used to bring in fresh air and drive out foul air) ដង្ហាល់, កង្ហារ, ផ្លិតយន្ដ

1.

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.