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 embodiments disclosed herein provide a check valve aspirator including a venturi pipe having a converging section with a converging inlet and a converging outlet, and a diverging section with a diverging inlet and a diverging outlet. The converging outlet is in fluid communication with the diverging inlet. An outlet channel is in fluid communication with the venturi pipe and has an outlet port.

A system for integrated pest management in an environment includes devices positioned within the environment. The devices each include a communications facility that enables transmitting signals to and receiving signals from a network device. The system further includes a network to provide communication between the network device to the devices. The network device receives communication and control functions from a remote computer for distribution to the devices. The system further includes a sensor positioned within the environment to transmit sensor data to the remote computer. The sensor is configured to detect and transmit a parameter for the environment to the remote computer. The system further includes a controller to control the emission of a fluid from a source of the fluid in fluid communication with the devices. The controller is configured to set or adjust an operation parameter of the devices in response to the sensor data.

A removable cartridge for use with a liquid diffusion device is provided. The removable cartridge includes a cartridge housing defining an internal housing cavity, partially filled with a liquid to be diffused, and a diffusion head positioned within the internal housing cavity with a venturi device for generating diffused liquid from the liquid contained in the internal housing cavity. The diffusion head defines at least a portion of a gas supply conduit that extends from a bottom end of the removable cartridge to the venturi device through the liquid to be diffused to enable the venturi device to be supplied with pressurized gas from an external source via the bottom end of the removable cartridge.

Systems and methods for managing scent in an environment include receiving data from sensors disposed in an environment regarding an indication that a service is being delivered in the environment and identifying remote atomizing scent diffusion devices disposed in the environment, wherein each scent diffusion device comprises a communications facility that enables transmitting signals to and receiving signals from the remote computer. Based on the indication, an electronic data structure is created defining a physical operational state of the scent diffusion devices, including data specifying at least one of a production of a scent that is intended to be a complement to the service, a fan speed of a fan in the diffusion device that moves particles carrying a scent, and a voltage of a pump of the diffusion device. The diffusion devices are caused to implement the at least one defined operational state.

Systems and methods for managing scent in an environment include disposing scent diffusion devices within the environment, wherein the diffusion devices comprise a communications facility that enables transmitting signals to and receiving signals from a non-fragrance dispensing, wide-area network gateway device that receives communication and control functions from a remote computer for distribution to the plurality of scent diffusion devices. A sensor in the environment transmits sensor data to the remote computer. A scent parameter for scenting the environment is received at the remote computer. Diffusion of a liquid from the scent diffusion devices is controlled by the network gateway device the to achieve the scent parameter, wherein controlling includes setting or adjusting an operation parameter of one or more of the scent diffusion devices in response to the sensor data.

A system for integrated pest management in an environment includes devices positioned within the environment. The devices each include a communications facility that enables transmitting signals to and receiving signals from a network device. The system further includes a network to provide communication between the network device to the devices. The network device receives communication and control functions from a remote computer for distribution to the devices. The system further includes a sensor positioned within the environment to transmit sensor data to the remote computer. The sensor is configured to detect and transmit a parameter for the environment to the remote computer. The system further includes a controller to control the emission of a fluid from a source of the fluid in fluid communication with the devices. The controller is configured to set or adjust an operation parameter of the devices in response to the sensor data.

An essential oils diffuser with a micro air pump providing between 500 and 1500 Pa of pressure with a consumption of between 0.2 and 1 Watts may be used to push air into essential oils or an essential oil solution to diffuse and expel the oils into the air, while keeping the oils away from the air pump, preventing the oils from shortening the life of the diffuser. The diffuser may include a power supply and a controller to regulate the operation of the diffuser.

A device for dispersing foul gaseous effluent emissions released diffusely by sources located close to the ground, in particular by wastewater treatment ponds (10, 11, 12), includes: at least two auxiliary air or gas injectors (5a1, 5b1; 5a2, 5b2; 5a3, 5b3) oriented upwards and installed in opposing zones on the periphery of each foul gaseous effluent source, such as to disperse the gaseous effluents; separate supply elements (8.1, 13a1, 13b1; 8.2, 13a2, 13b2; 8.3, 13a3, 13b3) for the injectors; and wind-direction-sensitive control elements for ensuring that at least the injector(s) best located to disperse and/or lift the gaseous effluent plume are supplied.

An essential oils diffuser with a micro air pump providing between 500 and 1500 Pa of pressure with a consumption of between 0.2 and 1 Watts may be used to push air into essential oils or an essential oil solution to diffuse and expel the oils into the air, while keeping the oils away from the air pump, preventing the oils from shortening the life of the diffuser. The diffuser may include a power supply and a controller to regulate the operation of the diffuser.