also: そうふうこう
Refers to an opening or duct for blowing air, typically in HVAC systems, vehicles, or appliances.
Cold air came out of the car's vent.
Please clean the air conditioner's ventilation duct.
通風口 is a passive ventilation opening, whereas 送風口 implies forced air delivery.
Standard kanji form; the reading そうふうこう is more common than そうふうぐち.
Alternate reading; less common but still encountered.
Compound of 送風 (sōfū, 'air blowing') and 口 (kuchi/kō, 'opening'). The reading そうふうこう uses the on'yomi for 口, while そうふうぐち uses the kun'yomi; the former is more common in technical contexts.