Thrasher Termite & Pest Control answers commonly asked questions about termite fumigation.

Is residue left on surfaces after termite fumigation?

Read on for a full explanation of this commonly asked drywood termite fumigation question.

Sulfuryl fluoride is the gas used to fumigate for drywood termites, wood infesting beetles, and bed bugs. It is a gas, not a spray. As a gas, it does not leave behind surface pesticidal residue¹. Think of helium. After you pop a helium filled balloon, the gas dissipates and surfaces are unaffected. Rub the inside of the balloon and you’ll find it dry. Or, have you ever experienced a natural gas leak from an unlit kitchen burner? Once you turn off the gas and air out the fumes, it is safe to continue cooking without washing down the counters or dishware.

The reason that you do not have to wash surfaces or cookware after termite fumigation is because the only thing that sulfuryl fluoride leaves behind is dead insects.

Q: Is residue left on surfaces after termite fumigation?

A: NO!

Q: How fast does the termite fumigant (sulfuryl fluoride) leave the house? What about boxes and cupboards?

A: The state of California has very strict regulations (the California Aeration Plan) about venting a structure after termite fumigation. (Yea!) In fact, these regulations supersede the aeration procedure labeling on the products used. These regulations protect workers and homeowners. When your home is declared safe for reentry, we mean it! Regarding boxes and cupboards, just as the fumigant quickly enters voids in walls, infiltrates boxes and cupboards, it exits all of these locations just as quickly once aeration begins.