Abstract: A container closure can include a collar, an actuator, and a biasing element. The collar can be configured to couple to a container. The collar can have a container facing surface and a second surface opposite the container facing surface. The actuator can be movable relative to the collar from a first position to a second position. The actuator can be in fluid communication with a cavity defined by the container such that the actuator dispenses material out of the container as the actuator moves from the first position to the second position. The biasing element can have a first portion coupled to the actuator and a second portion coupled to the second surface of the collar, the biasing element configured to bias the actuator toward the first position.

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.