At night before bed, hang a towel on the door knob

What are the benefits of doing this?
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If there is a smoker in the house, the room will have a strong lingering smell of cigarette smoke. Hanging a wet towel in the room can effectively absorb the smoke odor, improving the air quality and creating a fresher environment.
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Hanging a wet towel in the room at night can increase humidity and prevent the air from becoming too dry, especially when the room uses air conditioning.
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Additionally, adding white vinegar to the towel not only helps absorb odors, but also has a disinfectant effect. Moreover, the cleaning agents in the towel can help repel mosquitoes.
Hanging a wet towel like this has many health benefits. In other words, it can improve the quality of your sleep at night.