After spraying the insecticide, the time it takes to enter the room mainly depends on the amount of spraying and the indoor temperature. In general, it is recommended to enter the room after 10 to 30 minutes, and the specific time depends on the spraying amount and indoor temperature. If the indoor temperature is high, it can be entered in about 10 minutes; When the temperature is low, it is recommended to enter after 30 minutes. In addition, ventilation is also necessary after spraying insecticides, as maintaining indoor air circulation helps insecticides evaporate more quickly. For pregnant women or families with infants, it is recommended to avoid using pesticides as much as possible to reduce their impact on health.