A volatile substance dispensing device (101) and method of fabrication thereof based on a container (201) sealed by a membrane layer (220) with at least one perimetral channel (103) which prevents lateral diffusion of the volatile substance during storage. The at least one perimetral channel (103) is at least partially filled with blocking means such as glue (303) or a protrusion (302) of a separation layer (230) produced by applying heat welding during fixation to the container (201). The dispensing device (101) further comprises a removable barrier layer (240) on top of the separation layer (230).

A volatile substance dispensing device (101) and method of fabrication thereof based on a container (201) sealed by a membrane layer (220) with at least one perimetral channel (103) which prevents lateral diffusion of the volatile substance during storage. The at least one perimetral channel (103) is at least partially filled with blocking means such as glue (303) or a protrusion (302) of a separation layer (230) produced by applying heat welding during fixation to the container (201). The dispensing device (101) further comprises a removable barrier layer (240) on top of the separation layer (230).

An air filtering and treatment apparatus (10), the apparatus (10) including: a housing (12) having an air inlet (14), an air outlet (16), an air passageway (24) between the inlet (14) and outlet (16), and a fan (18) arranged to urge air through the air passageway (24) between the air inlet (14) and the air outlet (16), wherein the housing (12) includes filter (20) arranged to filter air passing through the air passageway (24), and a receptacle (26) located toward the air outlet (16) relative to filter (20). The receptacle (26) is adapted to hold treatment composition (22) such that an evaporable vapour associated with the treatment composition (22) is able to accumulate in a headspace (41) of the receptacle (26), the headspace (41) including at least one aperture (36). The air passageway (24) may be shaped such that air flows substantially perpendicularly past the at least one aperture (36) of the receptacle (26) such that a pre-determined amount of the evaporable vapour is entrained into the filtered air released from the air outlet (16). A system (100) and method are also disclosed.

An electronic picture frame and an odor releasing method thereof are provided. The electronic picture frame includes: a picture frame body having a display screen on the picture frame body; an odor releasing device disposed on the picture frame body and configured to release a plurality of different odors; and a processing device connected with the display screen and the odor releasing device, respectively, and configured to acquire material type information of a picture displayed on the display screen (2), and control the odor releasing device to release an odor corresponding to the material type information according to the material type information of the picture.

An ozone treatment system which is usable in enclosed or confined spaces for the inactivation of pathogens such as bacteria and viruses in these spaces.

An odor control system for landfills includes a vapor device configured to generate an odor neutralizing chemical mixture, and at least one fan directed at a working face of a landfill. The at least one fan includes a fan housing having an inlet opening and a discharge opening connected by a passageway therethrough, a blade assembly positioned within the passageway of the fan housing and configured to rotate to generate an airflow from the discharge opening in a first direction, and a motor coupled to the blade assembly. The system includes at least one nozzle in fluid communication with the vapor device and proximate the discharge opening. The at least one nozzle is configured to disperse an odor neutralizing chemical vapor in the same first direction of the airflow from the discharge opening.

Described is a scent producing assembly having a self-contained module comprising an absorptive matrix infused with a volatile composition and a housing. The housing may include a receptacle shaped to receive the module, wherein the housing has a stowed position and a deployed position. In the stowed position, the receptacle may be contained within an interior of the housing. In the deployed position, the receptacle may be displaced out of the housing. The receptacle may move along an arcuate path when the receptacle is moved between the stowed and deployed positions.

A device for diffusing volatile substances includes a container containing a liquid with the volatile substances, a base element that closes the container, and a wick that is impregnated with the volatile substances. The base element includes an internal channel in which the liquid containing the volatile substances is deposited. A part of the wick placed in the internal channel is impregnated with the liquid containing the volatile substances located in the internal channel.

A scent distribution device having a spherical housing and having one or more internal cavities in communication with a plurality of wicking members. The wicking members dispersed across the exterior of the housing for the distribution of a scent agent. The device including a harness engaged with an axis of the housing, wherein the housing rotates along the axis for rolling across a surface. The device further including a lead line and segregated and compartmentalized storage container.

A hand wash cleaning and environmental purification diffuser includes tank cover covered on a slot of a water tank in a bottom shell, a diffusing cover assembled to an opening of the bottom shell to shield the tank cover, an air flow channel formed in the oscillation space in the water tank and shaped like a tubular bulge so that when the diffuser is dumped, the liquid in the water tank is less likely to seep directly into the interior of the diffuser or the environment, two oscillators mounted in the oscillation space in the water tank and respectively coated with a layer of acid and alkali resistant coating, users can add safe cleaning liquids such as alkaline ionized water to the oscillation space and atomize into a cleaning mist, which can be used as deodorization and sterilization for hand cleaning, disinfection and environmental purification, and is safe to use.