Wiktionary
n. (context idiomatic English) Something relieving, refreshing, or new.
WordNet
n. a welcome relief; "the new management was like a breath of fresh air"
Usage examples of "breath of fresh air".
Terrified of humiliating herself by swooning in front of this indifferent stranger, she fumbled at the window for a latch, frantically seeking a breath of fresh air.
At the very least, the change of pace should be like letting a breath of fresh air into the negotiations.
Once on the sidewalk, she drew in a long, sweet breath of fresh air.
Santine, who looked as if he'd be quite happy to shoot his grandmother when he wasn't peddling cocaine to three-year-olds, was a breath of fresh air in comparison.
Tabitha barely had time to steal a breath of fresh air before Brisbane drifted back to his throne on a cloud of tart fragrance that smelled vaguely like Lemon Pledge.
He had come out for a moment, he said, `to get a breath of fresh air.