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Use "off-gases" in a sentence
"During use, PVC off-gases and releases hazardous chemicals like mercury, dioxins and phthalates (an endocrine disrupter)."
"All paints and coatings are low or no V.O.C. rated, eliminating off-gases, and all insulation is certified as healthy."
"Standard cleaning materials contain toxic chemicals and strict warning labels due to their emission of off-gases that can increase indoor air pollution."