Liquid sprayed or aerosol insecticide applications may not be performed in a room of a school or childcare center unless the room will be unoccupied for not less then two hours or longer, if required by the label.

• A. True
• B. False
• C. Not sure
• D. Depends on label

Answer: (B)

The key idea here is that how long a room must be unoccupied after applying an indoor insecticide is dictated by the product label, not a fixed rule. The label lists the reentry interval (RRI) – the minimum time the room must be unoccupied after treatment. That time can be two hours, longer, or in some cases shorter or require additional steps (like thorough ventilation). Because the requirement depends entirely on the specific product you’re using, you can’t state a universal two-hour minimum for all school or childcare rooms. Always follow the exact reentry interval and any ventilation instructions on the label.