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.

The present invention relates to a solid fragrance composition which can improve the load rate of a fragrant material, can selectively load a fragrance which can be acquired during the aging process of a mixed fragrant material, maintain the fragrance from the beginning of the loading, and improve the longevity of the fragrance at a uniform strength. In addition, the issue of being harmful to the human body can be resolved by reducing powder flying around, and stability at a high temperature can be improved so as to be applied in various environments.

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.

An instantaneous sterilization system for ventilation and air conditioning comprises: an air inlet; an instantaneous sterilization device being one or more of a chlorine dioxide disinfector, a hydrogen peroxide or hydrogen peroxide silver ion disinfector, an ultraviolet disinfector, an ULPA ultra-efficient air filter, a HEPA high efficiency particle air filter, a laser disinfector, a microwave disinfector, an infrared disinfector, an X-ray disinfector and a γ-ray disinfector, an output end of the instantaneous sterilization device being provided with a sterilized air outlet, and the sterilized air outlet being communicated with air and serves as an output end of the instantaneous sterilization system for ventilation and air conditioning; and a fan, an air inlet end of the fan being connected with the air inlet, and an air exhaust end of the fan being connected with the input end of the instantaneous sterilization device.

An air purifier (100) includes a housing (400) formed with an air duct (401), an ozone generation device (20), an activated carbon purification unit (80), and a fan (200) arranged in the air duct (401). The air duct (401) includes an air inlet (402) and an air outlet (403). The air outlet (403) is disposed indoors. The ozone generation device (20) and the activated carbon purification unit (80) are arranged in the air duct (401) along the direction of the air inlet to the air outlet (403), and the ozone generation device (20) is used to generate ozone. The fan (200) is used to suck gas from the air inlet (402) during operation and let the gas pass through the ozone generation device (20) and the activated carbon purification unit (80) to be discharged from the air outlet (403) into the room.

An air freshener includes a first arm and a second arm connected together at one of their ends by a joint to enable swinging of the arms between an open configuration and a closed configuration. In a closed configuration, a fastener clasps opposite ends of the first arm and the second arm together to surround a central space in which a support structure, such as a support post of a rearview mirror on a vehicle, may be positioned. The first arm and the second arm each include an inner wall and lateral side walls defining an open chamber in which a fragrance substrate is retained by an interference fit. The inner wall defines an interior periphery, and ends of the lateral side walls define an exterior periphery of the air freshener.

A scenting device is provided for scenting an interior of a vehicle. The scenting device comprises a housing and a scent container arranged in the housing. In addition, the scenting device comprises a holding device for attaching the scenting device to a ventilation in the interior of the vehicle. The holding device has a holding element with an opening and the opening is designed in the form of a through hole or a blind hole. Protrusions are arranged on the edge or on the walls of the opening, wherein the protrusions extend along the depth to different extents into the interior of the opening.

Method for producing and discharging ultrapure hydrogen peroxide gas GPHU into the ambient air, said gas being substantially free of hygroscopic substances and substantially free of metals, primarily for use in bio-oxidative treatments via the blood stream by inhalation, for use in humans and animals. Said method comprises ultrapure hydrogen peroxide gas, alkaline nanostructured nanomaterial metal catalyst, special polymer nanocomposite material NPE and UV light. The ultrapure hydrogen peroxide gas is discharged into the ambient air naturally by the surface of the NPE. Equipment for producing and discharging ultrapure hydrogen peroxide gas into the ambient air is also disclosed.

Method for producing and discharging ultrapure hydrogen peroxide gas GPHU into the ambient air, said gas being substantially free of hygroscopic substances and substantially free of metals, primarily for use in bio-oxidative treatments via the blood stream by inhalation, for use in humans and animals. Said method comprises ultrapure hydrogen peroxide gas, alkaline nanostructured nanomaterial metal catalyst, special polymer nanocomposite material NPE and UV light. The ultrapure hydrogen peroxide gas is discharged into the ambient air naturally by the surface of the NPE. Equipment for producing and discharging ultrapure hydrogen peroxide gas into the ambient air is also disclosed.

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.