There is provided an aerosol generating device comprising a storage portion (113, 501) for storing aerosol-forming substrate (115, 505). The device comprises: a vaporizer (119, 509) for heating the aerosol-forming substrate (115, 505), a capillary material (117, 507) for conveying the liquid aerosol-forming substrate (115, 505) from the storage portion (113, 501) towards the vaporizer (119, 509) by capillary action, and a porous material (201, 301, 405, 511) between the capillary material (117, 507) and the vaporizer (119, 509).

A system for diffusing one or more volatile compounds carried by a volatile compound mass is provided, including a base carrying a selectively activatable airflow generator and having a base outlet port defined therein. A resealable pod can include a tray and a cover, moveable relative to one another, and collectively defining a containment chamber that contains the volatile compound mass. The containment chamber has an inlet and an outlet, being openable and closeable by relative movement of the tray and the cover. The pod is positionable upon the base such that the base outlet port is in fluid communication with the chamber inlet to enable airflow generated by the airflow generator to pass through the base outlet port, the chamber inlet, the containment chamber, and the chamber outlet to thereby diffuse the one or more volatile compounds carried by the volatile compound mass.

An apparatus for mixing fuel and air and providing the mixture to an engine can include an entry conduit, a transfer conduit, and a mounting plate for coupling to an engine. The entry conduit can include a straight channel and an opening for receiving air into the channel. The entry conduit can also include a fuel inlet port disposed through a wall of the entry conduit for receiving fuel into the channel. A venturi valve can be disposed within the straight channel and can include an air-fuel mixing chamber, an inner wall, one or more fuel orifices disposed through the inner wall, and a fuel diffusion chamber fluidicly coupled to the fuel inlet port and the air-fuel mixing chamber. The transfer conduit can be coupled or integrally formed with the entry conduit and include an arcuate internal channel.

In an electronic cigarette, a mesh element is in contact with liquid storage. A heater is spaced apart from the mesh element and positioned to heat air which flows through the mesh element. The heated air vaporizes the liquid in or on the mesh. The vapor is inhaled by the user. A method of vaporizing a liquid in an electronic cigarette includes conducting liquid from a liquid storage to a mesh element. Electric current is supplied to a heater, optionally in response to sensing inhalation on the outlet or mouthpiece of the electronic cigarette. The heater heats air and the heated air is conducted through the mesh element, with the heated air vaporizing liquid on or in the mesh element. The vaporized liquid is entrained with the heated air and may then flow through or around the liquid storage to the mouthpiece.

A fountain is provided. The fountain includes: a drape; a catch basin located below the drape and oriented to catch a fluid flowing at least one of over and through the drape; a conduit fluidly connected to the catch basin forming a circuit to return the fluid in the catch basin to flow at least one of over and through the drape; a pump fluidly connected to the circuit and configured to pump the fluid through the conduit; and at least one of the drape, catch basin, conduit includes surface oriented to contact the fluid and the surface includes at least one of copper and silver.

A gas humidifier can have a gas channel comprising an inlet and an outlet. A portion of the gas channel can have a region having a reduction in cross-sectional area relative to the portions of the gas channel outside of the region. A water conduit can extend from the region to a water reservoir. A heating element can heat water entering the region from the water conduit. Water vaporized using the heating element can join the flow of gases passing through the gas channel in use.

A cartridge for an aerosol-generating system is provided, including a first compartment containing a nicotine source and having a first air inlet and first air outlet, the inlet being upstream of the outlet; a second compartment containing an acid source and having a second air inlet and second air outlet, the inlet being upstream of the outlet; a mixing chamber for mixing nicotine from the nicotine source and acid from the acid source with an air flow to form an aerosol, the mixing chamber being downstream of both the first air outlet and the second air outlet; and a heating element configured to heat the mixing chamber, at least a portion of the heating element being neither upstream nor downstream of the mixing chamber. An aerosol-generating system and a method for aerosol generation in an aerosol-generating system are also provided.

Some embodiments of the present disclosure provide a humidifier, the humidifier includes: a humidifier body, provided with a first air inlet; and an inner tub, provided in the humidifier body and internally provided with an air passage, a fan being provided in the air passage, the inner tub being provided with a second air inlet, the second air inlet and the first air inlet being communicated with an air inlet of the fan, and the portion of the inner tub above the second air inlet being provided with a blocking surface, which is provided opposite to at least a part of the first air inlet.

An aerosol-generating system includes an aerosol-generating device and at least two consumables. Each consumable includes an aerosol-forming substrate. The aerosol-generating device further includes a device housing comprising at least two receiving chambers, wherein each consumable is accommodated in a separate receiving chamber of the at least two receiving chambers. The aerosol-generating device further includes at least two mouthpieces, wherein each mouthpiece of the at least two mouthpieces is aligned with a separate consumable of the at least two consumables and wherein the aerosol-generating device is configured to isolate airflows through separate, respective mouthpieces of the at least two mouthpieces.

A volatilization device capable of automatic quantitative supplement of liquid includes: a vaporizer, defining an accommodation space and having an opening, air inlet and liquid inlet, the accommodation space being in communication with the opening, air inlet and liquid inlet; a gas supply, connected correspondingly to the gas inlet, allowing the gas supply to input gas to the vaporizer; and a liquid supply, having a liquid container, controller and press piece, the liquid container being connected to the controller and press piece, the controller being connected correspondingly with the liquid inlet, allowing the liquid supply to input liquid to the vaporizer, where the controller controls the start of the press piece to absorb the liquid in the liquid container, and input the liquid to the liquid inlet, and aerosol will be ejected from the opening when the liquid and gas is input to the accommodation space.