Q: Why bad odour is smelled during air conditioner start up?(為什麼一開機會有異味) A: The bad odour might be come from surrounding environment. We would like to recommend using the Auto Fan Speed during air conditioner start up operation, this Feature is useful for deodorizing control. (異味產生可能來自四周環境,我們建議一開機先使用自動送風,這個功能能大幅降低異味)