Her breath whistled as if she had been holding it.

The breath was still whistling in my chest; I couldn't make out any words.

Ian felt the breath whistle in and out of his lungs.

I could feel my muscles loosen and a breath whistled out of me.

But in the silence the breath whistled softly into her nostrils.

The sweat poured down me, and the breath whistled in my lungs.

He could barely speak, the breath whistling weakly in his throat.

As Molly's, her face was flushed, her mouth a little open to let the breath whistle in and out.

His breath whistled in and out through this horribly tiny connection he needed to maintain contact with the world.

Her breath whistled softly as he lifted his head and met her eyes.