The Xiaomi Home Assistant is a revolutionary device that has transformed the way we interact with our homes. With its advanced features and user-friendly interface, it has become an essential component of any smart home system. However, like any other device, it is not immune to issues. One such problem is the lack of a '新风' (fresh air) mode in the working mode options, which can lead to confusion when the air conditioner is only using the fresh air function. This article aims to delve into this issue, exploring its causes, effects, and potential solutions, while also discussing the broader implications of the Xiaomi Home Assistant in the smart home ecosystem.