The answer to 'signs of fumigation' is that common signs of recent fumigation include a strong chemical odor, visible gas or smoke, and warning signs or placards posted on the property. Fumigation is a pest control method that uses toxic gases to eliminate infestations of termites, bedbugs, or other pests. It's a serious treatment that requires a professional exterminator and may last several days.
After a fumigation, homeowners may notice a strong, unpleasant odor that can linger for some time. You may also see visible gas or smoke coming from the home. Additionally, there will likely be warning signs or placards posted around the property to indicate that fumigation is in progress or has recently been completed. These are all clear indications that a professional fumigation treatment has taken place.