Answer: aeration

AnswerCrossword Clue
AERATION

Carbon dioxide treatment

AERATION

Soda-making process

AERATION

Room freshener

AERATION
Treatment with carbon dioxide
AERATION
Mixture with air, purifying water.
AERATIONPurifying process.
AERATIONEffervescence.
AERATIONExposure to air
AERATIONVentilator's job
AERATIONPurpose of a faucet attachment