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Anonymous users2024-01-24I am a smart card, as far as I know, this device should not be harmful to the body, otherwise the application range will not be so broad, each product is to be certified by the quality inspection agency, it depends on whether your device is very well-known! It is recommended to check the origin and company of the equipment, as well as the detailed parameters of the product, the radiation range, etc., and ask the local technical personnel for specific details!
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Anonymous users2024-01-23Access control is generally electromagnetic, depending on whether it is an electromagnetic lock or an electric plug lock, but no matter what kind of magnetism is very small, it will not affect the body. However, the detection barrier is a detection card, which should have a certain hazard, try not to get close to the barrier.
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Anonymous users2024-01-22Rarely, it's always good to stay away.
The east-west gradient of electromagnetism weakens.
Now we are all in the electromagnetic environment, pay attention: far away from this, don't get close to which.
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Anonymous users2024-01-21It doesn't matter, there are still a lot of people producing and debugging access control equipment、、、 it seems to be okay.
Don't forget to bring the key and don't open and close the door too hard. Remember to check if the door is locked after work.
The smell of toilets is mainly derived from urine and feces as well as the smell of sewers, specifically, mainly hydrogen sulfide, ammonia, methyl mercaptan, etc. These are healthy shadow killers, causing respiratory problems and irritating to mucous membranes such as the eyes and nose.
Smokers are younger, which can affect the normal development of the body. >>>More
It mainly depends on what the ingredients of the cockroach medicine are, and the general smelly cockroach medicine will have an impact on the health of people after inhalation.
The ceiling is generally made of woodworking board or gypsum board, which is generally not harmful to the body, mainly because the paint (paint) brushed on the woodworking board or gypsum board will generally release some harmful substances (such as formaldehyde, etc.), so choose the paint that is also pointed, and keep the indoor ventilation.