Gentle warm noise at 3.4 with no EQ or modulation, like air through a vent
Preview plays right here. The generator adds a sleep timer, full controls, and WAV export.
Soft Air is the sound of a heating vent in a quiet room, or a fan on its lowest setting across the hall. It is warmer than pink but far from brown, with a smooth, unobtrusive hush that fills a space without ever calling attention to itself.
The color is 3.4, and everything else is left plain: no grey EQ, no pulse, Gaussian distribution and a two-second fade-in. That makes it a good gauge of what the color slider alone does between pink at 3 and brown at 4, with nothing else changing.
It is a general-purpose choice for people who want a comfortable background at any time of day. Standard Pink is the slightly brighter reference at 3, and Deep Brown is the full-bass extreme at 4. Box Fan is a similar color with grey EQ and grainier texture.