How long should you stay out of a house after fumigation?

How long should you stay out of a house after fumigation? How long you should stay out of house after fumigation depends on chemical, size of structure, temperature, and company procedures, but typical whole-house tent fumigation requires 24 to 72 hours of fumigation plus 6 to 24 hours of aeration, so total 2 to 3 days away. For drywood termite fumigation with Vikane, house is tented for 24 to 48 hours, then actively ventilated with fans for 6 to 12 hours until monitoring shows gas below 1 ppm, then you can re-enter. For bed bug fumigation, similar timeline, sometimes 72 hours exposure. You must not re-enter early even briefly to get items, as gas is odorless and lethal. The fumigation company will place warning signs and lock, and only certify re-entry after testing with Interscan or similar detector. After clearance, you should ventilate by opening windows for a few hours before staying overnight. Children, elderly, pregnant, and pets should wait extra few hours. Always follow your company's specific re-entry time on certificate, which may be 48 to 72 hours total.