To clean your fogger, set forth to your local grocery store and procure a gallon of distilled water and some clear vinegar. After returning home, prepare a solution of 50% distilled water and 50% clear vinegar. Empty your fog machine of all fog fluid (throw it away).Click to see full answer. Consequently, do fog machines leave residue?Yes, they do. Smoke particles settle on all surfaces and may leave a residue. Whether that residue is enough to cause a problem is dependant upon the density of smoke, the duration of the effect, the type of fogger or hazer and the type of fluid used. Smoke particles settle on all surfaces and may leave a residue.Secondly, can I use a fog machine indoors? As long as your fog machine is used properly it is perfectly safe to breathe. If you do use your fog machine indoors, make sure there is plenty of ventilation so the fog doesn’t accumulate in one room, making it difficult to see or breathe. Similarly, it is asked, how long do fog machines last? How long your fog juice will last depends on the wattage of your machine. One quart of fog juice will generally burn for six hours in a 400-watt compact fog machine (four hours in a low lying machine) and a 1,000-watt machine will burn for two hours.Why does my fog machine not work?Operating the fog machine without fluid can cause the pump-motor to burn out. The fluid also acts as a lubricant to the system. Make sure that the fluid tube leading into the machine is not kinked or bent. Replace the fog switch if the machine does not fog when the READY light is on and the fog button is pressed.