Abstract: Thermal foggers may include two or more feed inlets for introducing multiple feed streams to a thermal fogger aerosol generation zone such that the feeds may be introduced at different temperatures. Alternatives also include thermal foggers having multiple barrels such that different chemicals may be aerosolized in different aerosol generation zones to produce multiple aerosols which may be combined and applied to agricultural products, produce, or other surfaces or volumes, and thermal foggers including inlets for injecting non-combustible gases or liquids.