There is provided a system and method of cleaning surfaces of an interior cabin space of a contamination comprising a microbial and viral load. The method includes the steps of sealing the interior cabin space and placing water, and a solid or gel pack, into a container and generating a vortex the container by rotating an impeller. The agitation causes the solid or gel pack to release a gaseous cleaning agent. An air-borne spray exiting from the container spreads throughout the interior cabin space to coat the surfaces to be cleaned within the interior cabin space. The cabin is maintained closed for an effective time period while the coating from the air-borne spray dwells on the surfaces to eliminate or substantially reduce the load of the contamination.