Provided is a hybrid spray pump which sprays and applies a viscous liquid in a fine particle state to a material. The hybrid spray pump sprays effectively fine particles of the viscous liquid according to various characteristics of the viscous liquid ranging from low to high viscosity, and improves the quality of a particle application process by mixing fine particles and aerosol particles by spraying.

A film-forming atomizer atomizing a raw material liquid with ultrasonic wave to generate a raw material mist, includes: a raw material container containing the raw material liquid; a propagation vessel containing an intermediate liquid as a medium for propagating the ultrasonic wave to the raw material liquid; a support mechanism to support the raw material container so that at least a part of the raw material container is positioned in the intermediate liquid; a circulation mechanism to circulate the intermediate liquid; an ultrasonic wave generator to generate and apply the ultrasonic wave to the propagation vessel; and a degassing mechanism to discharge a gas in the intermediate liquid out of the film-forming atomizer.

The disclosure herein concerns a method including receiving at a computer at least one target value of a scent parameter for an environment that is remote from the computer, receiving at the computer a sensed parameter of the environment, and controlling, via the computer, diffusion of a liquid from a source of the liquid in fluid communication with at least one scent diffusion device to achieve the target value of the scent parameter, wherein controlling includes setting or adjusting an operation parameter of the at least one scent diffusion device in response to the sensed parameter.

The disclosure herein concerns a method including receiving at a computer at least one target value of a scent parameter for an environment that is remote from the computer, receiving at the computer a sensed parameter of the environment, and controlling, via the computer, diffusion of a liquid from a source of the liquid in fluid communication with at least one scent diffusion device to achieve the target value of the scent parameter, wherein controlling includes setting or adjusting an operation parameter of the at least one scent diffusion device in response to the sensed parameter.

An exemplary foam-at-a-distance dispenser includes a container for holding a fluid, a housing, a dispensing outlet, a motor and a pump. The pump has two or more air pump diaphragms, a liquid pump diaphragm, a liquid inlet, an inner valve plate, two or more air inlet valves secured to the inner valve plate, a liquid inlet valve secured to the inner valve plate, an outer valve support located outside of the inner valve plate, a liquid outlet valve secured to the outer valve support, an air outlet and a liquid outlet. Also included are motor, a wobble plate, a mixing chamber and a foaming cartridge located between the mixing chamber and the dispensing outlet. A liquid dispensing conduit extends from the liquid outlet to the mixing chamber and an air dispensing conduit extending from the air outlet to the mixing chamber.