• (n.) One who, or that which, fumigates; an apparattus for fumigating.
Fu'mi·ga`tor noun One who, or that which, fumigates; an apparattus for fumigating. 
fumigator One who or that which fumigates; an apparatus for applying smoke, gas, or perfume.
noun a device that generates a gas for the purpose of disinfecting or eradicating pests
a person or thing that fumigates. · a structure in which plants are fumigated to destroy insects.