Open windows for ventilation after outdoor extermination on a case-by-case basis. If the outdoor extermination is far away from the house, it usually does not affect the opening of windows and ventilation, and you can open the windows and ventilation at any time. If the environment of outdoor disinfection is closer to the bedroom house, in order to avoid the odor from entering the house, you can wait until the odor of outdoor disinfection disappears and then open the window to ventilate the house. Considering that the disinfectant is harmless to humans and animals, it is possible to open the windows after spraying, which means that the odor dissipates and does not affect people’s feelings. If you do the disinfection work indoors, you can open the window to ventilate after disinfection generally in about an hour’s time, do not have people indoors before opening the window to ventilate, to avoid inhaling irritating odors, and the people who are allergic to the disinfectant used for disinfection try to stay away from these environmental odors. If you feel unwell after opening the windows to ventilate the outdoor area, you should consult a doctor to avoid delaying your condition.