Advanced distortion generator.
Hot Air will increase the level of your tracks by producing extra harmonics.
The effect will bump the average level of your mixes/submixes without changing the peak level.
Since Hot Air is not a limiter nor a compressor it can be used alongisde your usual compression techniques.
Hot Air is very easy to operate:
The Curve control varies the nature of the effect from minimum where the content seems to be expanded (increased dynamic range) - through halfway where the dynamic range seems least affected - to maximum where the programme is loudest and seems to have some degree of dynamic compression.
Blend is a simple Dry/Wet control which for example can allow you to layer a heavily effected copy of your input over the clean signal.