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Just get an access control system, and if you want to go to the bathroom, you need an Internet card from an Internet café or another card from an Internet café to open the door.
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Add signs at the door of the Internet café saying that idlers are free to go to the toilet.
Rewire the line I drawn.
1: Two lights are connected to each other. >>>More
How to get rid of odors in the bathroom: 3 steps.
Hello friends, do you mean that you can turn on and off the toilet lights and the living room and dining room lights as soon as you enter the door, and you can control the lights in the living room in the dining room??? Is that so? I'm a plumbing professional, and you can control it anywhere.
In winter, just stop using the infrared remote control exhaust fan.
If there is an odor in the bathroom, you can use the following methods to deodorize: >>>More