The phrase "a cool blast" is correct and usable in written English.
It can be used to describe a refreshing or invigorating gust of air or wind, often in a positive context.
Example: "As I stepped outside, I was greeted by a cool blast of air that made the hot day feel much more bearable."
Alternatives: "a refreshing breeze" or "a brisk gust".
A cool blast of air comes through the open door, and the sound grows louder.
Keep your head down until people have forgotten just how awful you are and then reëmerge as a cool blast from the past!
But then the guest of honour, Karin Fossum, took the stage, and the bonhomie evaporated in a cool blast of Norwegian air.
Another Today presenter, Sarah Montague, says: "He was a breath of fresh air, a cool blast of logic, and I'm very sad he's going.
He took the lead on "Chelsea Bridge," a Billy Strayhorn ballad, and his finessing of the melody sharpened the air, like a cool blast of wind.
Mollie's is a cool blast of fresh air for anyone who has eaten through gritted teeth at a Brewers Fayre merely because it's a family-friendly option and close to a Premier Inn.
About 7 minutes into the 16-minute-long concluding track of "Where You Go I Go Too" (Feedelity/Smalltown Supersound), the outstanding first proper solo album by the Norwegian electro-disco producer Lindstrom, a cooling blast of soul-jazz takes over the song as if the radio station had just been abruptly switched.
A young child, golden-haired and girly in a lace-fringed dress, was the first to make her presence known: late one night, she was simply there, kneeling by the side of a guest's bed, hands folded, head tilted upward until the guest reached to touch her — and she dissolved in a cool graveyard blast.
The cool blast of evil, like the deceptive wind chill on a sweltering summer day that gives Mailer her title, serves only to make the emotional temperature in Sweet Valley seem an even more comfortably heartwarming 72 degrees.
Cockroaches have taken to hovering at the entrances of big office buildings just to feel that cool blast of A.C. when the automatic doors open.
In the morning, put them back on top of the pile and your friend will start his day with an icy-cool blast down below -- just when he thought it was finally spring!
