How do you spell the sound of a person blowing?

There isn't one single spelling that perfectly captures the sound of a person blowing. It depends on the context and the type of blowing sound:

* "Blowing air out of the nose": "Sniff", "Snort", "Whew"

* "Blowing air out of the mouth": "Puff", "Blow", "Whew", "Ha"

* "Blowing on something": "Pfft", "Whoosh", "Brrr"

You could also use onomatopoeia, which is the formation of a word from a sound, such as:

* "Blowing a bubble": "Plop"

* "Blowing a whistle": "Woo"

* "Blowing a horn": "Beep"

Ultimately, the best way to represent the sound of a person blowing depends on the specific situation and the desired effect.