Inhalation of small amounts of insecticides is basically not harmful, inhalation of large amounts of insecticides may lead to poisoning.
If the ordinary insecticide for mosquitoes is generally only slightly toxic, so just a small amount of short-term inhalation, and is in the case of open windows and ventilation, it will not be poisoned.
However, if there is no ventilation, long time in the concentration of higher insecticides in the environment, long-term inhalation of insecticides will be poisoned; because most of the insecticides contain benzene, the nervous system has a toxic effect, there may be dizziness, headache,, breathing difficulties, allergies and other phenomena.
After inhaling a large amount of insecticides, it may cause great harm to the respiratory system, digestive system, etc. Therefore, the patient should go to the hospital in time, and control the condition as soon as possible under the guidance and treatment of professional medical personnel.