Per the manufacturer the Airofog ULV 120 Flex Cold Fogger can distribute a visible mist up to 40 feet in distance and further that is not visible to the naked eye.
Fogging is only effective in killing those mosquitoes that are out in the open at the time you are doing so. There is no residual so you would have to re-treat often. The Airofog ULV 120 Flex Cold Fogger is really more for indoor applications such as in air ducts, drains, smaller corners, and false ceilings. You can use it outside but would have to fill often and be closer to areas you need to treat.