This fog fluid is especially formulated to give excellent results in our battery-powered machines. It will give you the most fog, and the longest-lasting fog, for the least amount of battery power. These refillable 5ml tubes screw into the Tiny S and Tiny FX machines, eliminating the need for an external tank. Refer to Fluid Consumption Chart under Technical Documents tab to determine how long 5 ml will last in your particular machine.