The Chinese word for air vent is
通风孔

tōng fēng kǒng

Chinese Definition

air vent
1. 排气孔
Components
通
1. to pass through; to travel through; to go through; or, to allow passage
通心粉 - macaroni (lit. "pass-through heart pasta")
通道 - passageway; thoroughfare
講唔通 - unable to have someone understand what one is talking about (lit. "unable to talk through")
2. pipe-shaped object
鐵通 - iron pipe
3. (telephony) to get through
我打咗幾次都打唔通。 - I tried to call several times but couldn't get through.
4. to make sense; logical
5. expert
中國通 - one who knows China very much -
6. (of _, Chinese characters) to be etymologically related to and carry a similar meaning to
……通「國」 - … is the same as "(m, zh, 國")
7. (Min Nan) can; may
(Alternative form 可, 倘)
這通食 %無？ - Can this be eaten?, MN
8. (Cantonese) Short for 通心粉, tr=-, macaroni
腿通 - macaroni with ham -
风
1. Simplified form of 風
孔
1. hole; aperture; opening
鼻孔 - nostril
2. (literary, for irrigation, drainage) ditch; trench; canal; channel
3. (literary, or in compounds) profound; far-reaching
4. (literary, or in compounds) unimpeded; unblocked
5. (literary, or in compounds) large
6. (literary, or in compounds) fine
7. (literary, or in compounds) very; extremely
8. (literary, or in compounds) peacock; peafowl
孔祥-熙 - H. H. Kung (Chinese banker and politician)
9. (specifically) Short for 孔子, Confucius
10. (Quanzhou Hokkien)