A substance or device that removes or masks odors / odours(noun)
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Use "deodorizer" in a sentence
"The company produces a byproduct in its refining operations, called deodorizer distillate, which it sells to other manufacturers for a variety of uses."
"The bottle that contains the deodorizer is a sturdy plastic bottle, a heavier plastic than I would expect."
"Yeah and you still have the VDTs – we smelled the berry-scented deodorizer."