As I suspected, it is pretty noisy. I guess that's not so weird since you're actually causing small mid-air explosions.
I don't think they (or anyone) know how to achieve color either.
As I suspected, it is pretty noisy. I guess that's not so weird since you're actually causing small mid-air explosions.
I don't think they (or anyone) know how to achieve color either.
Spray the air with chemicals?