This technology is called Mist Air. Mist Air produces a mist vapour which is so fine, as to attract itself to dust particles in suspension. However, the droplets of vapour are so fine as to not cause any wetting of floors or other working and manoeuvring areas.
Users of Mist Air also report temperature drops of as much as 10% C in working areas where it is used.
Mist Air is also perfect for outdoor applications (e.g. quarries) as it can be weather vane controlled, to always create the mist on the upwind side of the dust problem.
One final huge advantage of Mist Air is how little water it uses.