Ventilator

[Sarah]

A contrivance for effecting ventilation; especially, acontrivance or machine for drawing off or expelling foul or stagnantair from any place or apartment, or for introducing that which isfresh and pure.

[Sarah]

Shotgunning smoke into someone's nostrils.

Blowing smoke into someone's nose.

[Julene]

an opening or a device that allows fresh air to come into a closed space:

[Vania]

An appliance or aperture for ventilating a room or other space.