kàn fáng shí wén dào wèi dào bù yào zhǐ tīng tōng fēng jǐ tiān jiù hǎo

看房时闻到味道，不要只听“通风几天就好”。

When viewing a property, if you smell something, don't just accept the line 'it'll be fine after airing it out for a few days'.