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There is a question: is the air inlet outside the wall? Is it a bit like a fresh air system
Look at the scene of use, is the wind blowing on people's faces? How to solve the problem of drying the back of the hand without completely wrapping the hand? How to sterilize your research like a joke...
Is the society swollen now ~ ~ there are dudududu everywhere
This mass production will feel great.
Using hand dryers should save much more than using toilet paper. Some people really waste paper.