also: そうふうぐち
noun
Refers to an opening or duct for blowing air, typically in HVAC systems, vehicles, or appliances.
車の送風口から冷たい風が出てきた。
Cold air came out of the car's vent.
エアコンの送風口を掃除してください。
Please clean the air conditioner's ventilation duct.
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.