ventilator

noun
UK /ˈvɛntɪleɪtə/
US /ˈvɛntəleɪtər/

A machine that helps a person breathe.

The patient in the hospital was connected to a ventilator.


OTHER MEANINGS

2. A device or opening that lets fresh air into a room.

The kitchen ventilator pulled smoke and steam out of the air.

3. A person or thing that causes air to move through a space.

The old factory used a large ventilator to keep the workers cool.

4. A machine that blows air to cool an engine or equipment.

The car's ventilator kept the engine from getting too hot.