Bloom air around instruments

I use a hairdryer with good results!

Old Chinese saying: "If want to learn much, first read what has
already been said."  

(It also may help to define your terms, outside horticulture.)

https://forum.audiogon.com/discussions/recommendations-for-improving-visceral-impact/post?highlight=air%2Bionizer&postid=1712871#1712871

and probably many, many other posts, through the years.

The ambient sounds of the area the recording was recorded in.  By area ...indoor (Studio) vs indoor (concert hall/non-studio building) vs. outdoor area.    Some like to call this "air" which is fine, but it would seem that the "sound" of the recording area is most likely that "air". 

Add a filter choke to the preamp and amp and that will get you to understand how things begin to work and sound.

Happy Listening.