What is the definition of Deemed Fumes?

"Deemed fumes" is a term that humorously refers to the noxious, invisible byproducts of our everyday activities that we can't see or smell but are still unkindly labeled as hazardous waste. It's like saying, "We're just making a cloud of smoke that no one can see, but we know it's making them cough."

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Now, here's an unsettling example sentence: "The government deemed the lingering odors from the old gas station fumes as 'deemed fumes,' despite the fact that it had been emitting them for decades, turning our town into a gas mask factory."