This cloud has the same properties as Cold Aercloud.
Entities will sink 1 block down, into the aercloud; items will do the same. If you fall onto the aercloud, you and all other entities will not take fall damage. This can also be used to craft a Golden Parachute.
Where to find this Aercloud
It can be found in capsules past either the Z or X axis of 8000 or -8000.