Fumigation is the destruction of disease germs, insects, and other objectionable animal life by means of toxic gases. In principle fumigation is similar to chemical warfare: a toxic gas is allowed to accumulate in an enclosed space until the concentration becomes lethal to all animal life within that space. Among the pests which may be destroyed by fumigation are moths, mosquitoes, flies, bedbugs, fleas, and such insect carriers as rats, mice, and squirrels.
