A self-sealing fragrance dispenser can be positioned within an air channel having active and inactive air flow states. The dispenser can include a main body having an cavity in which a fragrance medium can be disposed, an access door, an intake door, and an exhaust door. The intake and exhaust doors can be biased in closed positions via bias structures or gravity. Pressures exerted against the intake and exhaust doors when the air channel is in the active air flow state place the intake and exhaust doors in respective closed intake and closed exhaust door states that seal the amount of fragrance medium within the cavity when the air channel is in the inactive air flow state.

A self-sealing fragrance dispenser can be positioned within an air channel having active and inactive air flow states. The dispenser can include a main body having an cavity in which a fragrance medium can be disposed, an access door, an intake door, and an exhaust door. The intake and exhaust doors can be biased in closed positions via bias structures or gravity. Pressures exerted against the intake and exhaust doors when the air channel is in the active air flow state place the intake and exhaust doors in respective closed intake and closed exhaust door states that seal the amount of fragrance medium within the cavity when the air channel is in the inactive air flow state.

This system includes an olfactory display in which a plurality of aroma source cartridges can be loaded, a terminal device that controls the olfactory display, and a server connected to the terminal device via a network. The terminal device includes a content reproducer that reproduces an aroma-added content downloaded from the server. Aroma reproduction information includes aroma numbers standardized to specify types of aromas. The content reproducer determines which one of the plurality of aroma source cartridges loaded in the olfactory display is to be used to reproduce an aroma based on the aroma number, and allows the aroma to be emitted from the olfactory display based on the aroma reproduction information in synchronization with video and/or sound.

Methods, systems and devices associated with a scented electronic candle are described. In one example, an electronic candle includes an outer shell with one or more openings configured to allow a fragrance to exit to an ambient environment of the electronic candle. The outer shell comprises a central opening such that a flame element protrudes at least partially through the central opening. The device includes a light emitting component to emit a light onto the movable flame, and a mounting base positioned below the movable flame element. The device also includes a scent storage component removably coupled to the mounting base. The scent storage component includes a container to store a fragrance and an absorption member configured to draw the fragrance to the ambient environment of the electronic candle through the one or more small openings of the outer shell.

A device or system is provided that provides olfactory stimuli, and includes a piezoelectric vibration device that is used to produce scents corresponding to actions performed in a VR or AR environment, or other application. In some implementations, a user interacts with one or more game elements within a game program being executed by a game engine, and responsive to the interaction, the game engine may communicate a series of commands that cause a piezoelectric device of the device to generate scents to be experienced by the user.

Vapor generation and distribution devices, systems, and methods. An exemplary system of the present disclosure comprises a vapor generation system configured to volatilize or vaporize liquid chemical within a tank as volatilized or vaporized chemical, and a vapor distribution system configured to receive the volatilized or vaporized chemical from the vapor generation system and distribute the volatilized or vaporized chemical through a distribution conduit coupled to the second air flow generator.

Vapor generation and distribution devices, systems, and methods. An exemplary system of the present disclosure comprises a vapor generation system configured to volatilize or vaporize liquid chemical within a tank as volatilized or vaporized chemical, and a vapor distribution system configured to receive the volatilized or vaporized chemical from the vapor generation system and distribute the volatilized or vaporized chemical through a distribution conduit coupled to the second air flow generator.

A diffuser that may receive a refill bottle that supplies fragrance to the diffuser is provided. The diffuser includes a seat to facilitate easy placement and alignment of the refill bottle in the diffuser. The diffuser has an arm that can rotate about a pivot axis. The arm may rotate away from the seat to allow the user to place the refill bottle into the seat of the diffuser. The arm may also rotate towards the seat such that the arm can be placed over the refill bottle. The arm contains a piezo-electric component that can atomize the fragrance supplied by the refill bottle. The arm also includes a plurality of springs to create sufficient contact between the piezo and the refill bottle, to apply a downward force on the refill bottle, and to engage with a lock to secure the arm over the refill bottle.

Various implementations include a fluid treatment device. The device includes an outer tube, an inner tube, a plurality of blades, and a media. The outer tube includes an inner surface. The inner tube is coaxially disposed within the outer tube. An outer surface of the inner tube and the inner surface of the outer tube define an annulus that axially extends between the ends of the inner tube. The plurality of blades is disposed within the annulus. The plurality of blades is configured to alter a component of a flow direction of fluid flowing over the blades in a circumferential direction and/or a radial direction. The media is disposed within the inner tube. The inner tube defines a plurality of perforations extending between its outer surface and inner surface. The annulus defines an entire flow path of fluid flowing between the outer tube and the inner tube.

Various implementations include a fluid treatment device. The device includes an outer tube, an inner tube, a plurality of blades, and a media. The outer tube includes an inner surface. The inner tube is coaxially disposed within the outer tube. An outer surface of the inner tube and the inner surface of the outer tube define an annulus that axially extends between the ends of the inner tube. The plurality of blades is disposed within the annulus. The plurality of blades is configured to alter a component of a flow direction of fluid flowing over the blades in a circumferential direction and/or a radial direction. The media is disposed within the inner tube. The inner tube defines a plurality of perforations extending between its outer surface and inner surface. The annulus defines an entire flow path of fluid flowing between the outer tube and the inner tube.