First, it is harmful to human body, because these pesticides must have certain toxicity to make mosquitoes disappear from everyone's sight. Scientists have also studied that although this kind of thing has certain toxicity, it is very small for the human body. As long as everyone is careful not to stay in such gas for a long time when using it, there will be no harm.

Second, for example, after spraying a mosquito killer, our bodies may not change for a short time. If we ingest a large amount of this gas, it may cause certain reactions to our bodies, such as increasing the probability of cancer, and there may be some vomiting and diarrhea. If it is the most serious, it may also bring serious sequelae.

Third, so when we choose this kind of mosquito killer, we'd better choose some ones that are less harmful to human body, and also choose some mosquito killers produced by regular manufacturers when we choose them, because these things can guarantee to minimize the damage to a certain extent, because the main ingredients in them are toxic.

Fourth, things like this, if harmful to the body, can easily damage the human nervous system. If you are exposed to too much, it is easy to make people feel that their nerves become paralyzed and their thinking becomes a little dull, and it is also easy to make the blood in the human body pathological and cause some blood diseases. And if this thing is not used properly, it is easy to burn.

In short, you must pay attention to safety when using this mosquito killer. When using it, you must stay away from this gas and ventilate your home in time.