5 sentences

1. 房间应该定期通风。

   fáng​jiān yīng​gāi dìng​qī tōng fēng.

   The room should be regularly ventilated.

   Source: CCMatrix

2. 保持居室通风。

   bǎo​chí jū​shì tōng fēng.

   Keep the room ventilated.

   Source: CCMatrix

3. 有些人以为通风和空调是一回事。

   yǒu​xiē​rén yǐ​wéi tōng​fēng hé kōng​tiáo shì yī​huí​shì.

   Some people think that ventilation is the same thing as air conditioning.

   Source: UM-Corpus: Education

4. 确保所有房间通风良好，通风口没有堵塞。

   què​bǎo suǒ​yǒu fáng​jiān tōng​fēng liáng​hǎo, tōng​fēng​kǒu méi​yǒu dǔ​sè.

   Make sure all rooms are well ventilated and that vents are not blocked.

   Source: CCMatrix

5. 感觉通风口并检查是否有空气出来。

   gǎn​jué tōng​fēng​kǒu bìng jiǎn​chá shì​fǒu yǒu kōng​qì chū lai.

   Feel the vents and check if there is air coming out.

   Source: CCMatrix