Was looking for a video on this specific work, but only found this [1] where the English translation seems AI-generated. It reminded me of thermoacoustic refrigeration which I found cool (heh) when I had encountered it many years ago - where the compression and rarefaction of sound waves is used to pull out heat. The fire extinguisher seems to operate on a different principle though - it needs to generate a specific kind of turbulence to push out oxygen from the fire site.

[1] https://www.youtube.com/watch?v=TGO7Jdfll7c

[2] https://en.wikipedia.org/wiki/Thermoacoustic_heat_engine