Longray Pulse-Jet Thermal Fogger (2nd-gen) Heavy-duty thermal fogger that produces fine, 0.5-50.0 micron droplets. Produces a smoky fog, with smaller particles than ULV sprayers, and longer spray distance. Works with pesticides, disinfectants, fogging agents meeting these requirements: (1) oil-based (preferred) or water-based, and (2) labeled for thermal fogger use. 1 year warranty.