A device for holding a shower head, the device comprising a base connectable to a support; an arm connected to the base and configured to move with respect to the base about a first axis and about a second axis, wherein the first axis is generally perpendicular to the second axis; an extension member supported by the arm and configured to extend relative to the arm; and a holder connected to the extension member and configured to hold the shower head.

A device for holding a shower head, the device comprising a base connectable to a support; an arm connected to the base and configured to move with respect to the base about a first axis and about a second axis, wherein the first axis is generally perpendicular to the second axis; an extension member supported by the arm and configured to extend relative to the arm; and a holder connected to the extension member and configured to hold the shower head.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

A system and adjustable apparatus for applying CO.sub.2 gas to improve Cannabis production. The system includes upstream and downstream stages or subsystems. The upstream subsystem receives and stores gas, particularly CO2 gas. It monitors the environment of the downstream subsystem, determines when and how to apply gas to plants growing in the downstream system, acquires gas stored in the upstream subsystem, and distributes it to the downstream system. It also has various monitoring, command and control, management, and reporting features. The downstream subsystem includes one or more plant growth areas or plots, gas distribution means, such as gas conduits, tubes or lines from the midstream subsystem, and the high efficiency, adjustable gas applicator, and various sensing and monitoring devices communicatively connected to the upstream subsystem. Also disclosed are systems, apparatus and methods for pest control, humidity control, and odor control.

A system and adjustable apparatus for applying CO.sub.2 gas to improve Cannabis production. The system includes upstream and downstream stages or subsystems. The upstream subsystem receives and stores gas, particularly CO2 gas. It monitors the environment of the downstream subsystem, determines when and how to apply gas to plants growing in the downstream system, acquires gas stored in the upstream subsystem, and distributes it to the downstream system. It also has various monitoring, command and control, management, and reporting features. The downstream subsystem includes one or more plant growth areas or plots, gas distribution means, such as gas conduits, tubes or lines from the midstream subsystem, and the high efficiency, adjustable gas applicator, and various sensing and monitoring devices communicatively connected to the upstream subsystem. Also disclosed are systems, apparatus and methods for pest control, humidity control, and odor control.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.

A shower assembly includes a telescoping rod assembly for placement between opposing walls. The rod assembly includes an outer rod having opposite open ends and a spring-biased inner rod mounted inside the outer rod for axial movement in relation to the outer rod such as to allow adjustment of an axial length of the rod assembly. A control valve can be attached to a water-supply line for controlling discharge of water from the one. A tubular member having one end connected to the valve and another end enters a valve-proximate one of the open ends of the outer rod. A primary shower head is connected to the other end of the tubular member at a location distal to the valve-proximate one of the open ends.

A system and method have been shown for the effective implementation of a height and rotational adjustment system for a plurality of spray guns for use in a line striper.