What is the advantage of doing this? If there is a smoker in the house, there will be a strong odor of cigarette smoke. Hanging a moist towel in the room will effectively absorb smoke odors, improving air quality and creating a fresher environment.

Hanging a damp towel in the room at night can impart humidity and protect the air from becoming too dry, especially if the room is air-conditioned.Furthermore, adding white vinegar to the towel helps to absorb odors while also acting as a disinfectant. Furthermore, the cleaning components in the towel can help repel mosquitos.
Hanging a moist towel this way has various health benefits. In other words, it can help you get a better night’s sleep.