Fumigation

Fumigation is also used during the processing of goods for import or export to prevent the transfer of exotic organisms.

This process is commonly used for the treatment of drywood termites and/or bedbugs, using sulfuryl fluoride as the pesticide (sulfuryl fluoride is a naturally occurring gas, used in much higher concentration than found in the natural atmosphere, and which leaves no physical residue).

The fumigated structure can be re-occupied after the tent has been removed and the pesticide has dissipated to a safe level, with no need for physical cleaning.

[4] Formaldehyde fumigation has long been an accepted method for areas where microbiological cleanliness is required.

[citation needed] However, alternative methods are sought due to safety and efficacy concerns.

Vaporized hydrogen peroxide is a dry gaseous method that has been used as a reliable alternative for aseptic processing isolators, and more recently, for room/facility decontamination.

[5] Hydrogen peroxide and silver in solution and diluted in water is a non-toxic and low cost agent.