During fumigation, precautions should include ensuring all occupants, including pets, leave the premises and remain away until it is declared safe to return. All consumables, including food, drinks, and medicines, should either be removed or sealed in special protective bags. Turn off gas lines and unplug all electrical appliances. Provide access to all parts of the house, including attics and crawl spaces, and avoid disturbing the fumigation tent or equipment during the process.