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There are people waiting in front of the toilet, who become red due to bad smell. Moreover, after entering a toilet, you feel uncomfortable. I suggest following designs to solve this displeasure.
At first, this product cut off bad smell rising from urinal entrance and circulate the smell and keep it pushing the switch of the urinal, the small disappear with flowing water. The product malces pleasant environments by attaching ventilation fan to the urinal entrance simply.
Deajeon, South Korea