Ventilator's job

• The process of exposing to air (so as to purify)
• Carbon dioxide treatment
• The act of charging a liquid with a gas making it effervescent
• Function of a faucet insert
• Treatment with carbon dioxide
• Purpose of a faucet attachment

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Arterialization \Ar*te`ri*al*i*za"tion\, n. (Physiol.) The process of converting venous blood into arterial blood during its passage through the lungs, oxygen being absorbed and carbonic acid evolved; -- called also a["e]ration and hematosis .

WordNet Word definitions in WordNet
n. the process of exposing to air (so as to purify) the act of charging a liquid with a gas making it effervescent

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1570s, from French aération , from aérer (v.), from Latin aer (see air (n.1)). In some cases, from aerate .