As much (of a scent etc.) as can be taken into one's nose; a sniff.(noun)
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Use "noseful" in a sentence
"Add the vinegar, being careful not to get a noseful of the acidic fumes that will rise when the vinegar hits the hot pan."
"He handed her the coffee, sniffing back a noseful of congestion and swallowing."
"Yes, yes, I know, I should never commend any advertising strategy because in the end companies only do things if they think it's going to move their product and make them a noseful of money."