A wearable distress device includes a smoke generating unit, an activation circuitry comprising a battery, a switch and a filament interconnected such that upon operation of the switch the filament is heated for igniting the smoke generating unit. The device further includes an enclosure comprising a smoke generating unit chamber configured to house the smoke generating unit and the filament, the smoke generating unit chamber having a smoke outlet wall formed by a portion of an outer wall of the enclosure, the smoke outlet wall comprises a material being heat reactive such that upon ignition of the smoke generating unit a smoke outlet is formed by burning and/or melting through the smoke outlet wall.

A wearable distress device includes a smoke generating unit, an activation circuitry comprising a battery, a switch and a filament interconnected such that upon operation of the switch the filament is heated for igniting the smoke generating unit. The device further includes an enclosure comprising a smoke generating unit chamber configured to house the smoke generating unit and the filament, the smoke generating unit chamber having a smoke outlet wall formed by a portion of an outer wall of the enclosure, the smoke outlet wall comprises a material being heat reactive such that upon ignition of the smoke generating unit a smoke outlet is formed by burning and/or melting through the smoke outlet wall.

A vapor provision system configured to selectively generate differently-flavored vapors for inhalation by a user and to make use of this ability to provide user feedback. The system includes a first vapor precursor material having a first flavor and a second vapor precursor material having a second, different, flavor one or more vaporizers arranged to generate vapor from a selectable ratio of the first and second vapor precursor materials to provide a vapor with a selectable flavor for normal use; and control circuitry configured to determine if a user notification condition arises for the vapor provision system, such as a low battery warning, and in response to determining a user notification condition has arisen, to control the at least one vaporizer to generate a vapor using a modified ratio of the first and second vapor precursor materials to provide a vapor with a different flavor by way of an indication that a user notification condition has arisen.

A vapor provision system configured to selectively generate differently-flavored vapors for inhalation by a user and to make use of this ability to provide user feedback. The system includes a first vapor precursor material having a first flavor and a second vapor precursor material having a second, different, flavor one or more vaporizers arranged to generate vapor from a selectable ratio of the first and second vapor precursor materials to provide a vapor with a selectable flavor for normal use; and control circuitry configured to determine if a user notification condition arises for the vapor provision system, such as a low battery warning, and in response to determining a user notification condition has arisen, to control the at least one vaporizer to generate a vapor using a modified ratio of the first and second vapor precursor materials to provide a vapor with a different flavor by way of an indication that a user notification condition has arisen.

Described herein are methods and systems for visualization of a carbon footprint for one or more real-world objects or events. A server computing device identifies a carbon footprint value for at least one real-world object or event. The server computing device determines an amount of greenhouse gas that corresponds to the carbon footprint value. The server computing device generates instructions for operation of a gas visualization device coupled to the server computing device based upon the amount of greenhouse gas. The server computing device transmits the instructions to the gas visualization device. The gas visualization device executes the instructions to produce an amount of gas (i.e., fog or vapor) based upon the received instructions.

Described herein are methods and systems for visualization of a carbon footprint for one or more real-world objects or events. A server computing device identifies a carbon footprint value for at least one real-world object or event. The server computing device determines an amount of greenhouse gas that corresponds to the carbon footprint value. The server computing device generates instructions for operation of a gas visualization device coupled to the server computing device based upon the amount of greenhouse gas. The server computing device transmits the instructions to the gas visualization device. The gas visualization device executes the instructions to produce an amount of gas (i.e., fog or vapor) based upon the received instructions.

A wearable distress device includes a smoke generating unit, an activation circuitry comprising a battery, a switch and a filament interconnected such that upon operation of the switch the filament is heated for igniting the smoke generating unit. The device further includes an enclosure comprising a smoke generating unit chamber configured to house the smoke generating unit and the filament, the smoke generating unit chamber having a smoke outlet wall formed by a portion of an outer wall of the enclosure, the smoke outlet wall comprises a material being heat reactive such that upon ignition of the smoke generating unit a smoke outlet is formed by burning and/or melting through the smoke outlet wall.

A wearable distress device includes a smoke generating unit, an activation circuitry comprising a battery, a switch and a filament interconnected such that upon operation of the switch the filament is heated for igniting the smoke generating unit. The device further includes an enclosure comprising a smoke generating unit chamber configured to house the smoke generating unit and the filament, the smoke generating unit chamber having a smoke outlet wall formed by a portion of an outer wall of the enclosure, the smoke outlet wall comprises a material being heat reactive such that upon ignition of the smoke generating unit a smoke outlet is formed by burning and/or melting through the smoke outlet wall.

A vapor provision system configured to selectively generate differently-flavored vapors for inhalation by a user and to make use of this ability to provide user feedback. The system includes a first vapor precursor material having a first flavor and a second vapor precursor material having a second, different, flavor one or more vaporizers arranged to generate vapor from a selectable ratio of the first and second vapor precursor materials to provide a vapor with a selectable flavor for normal use; and control circuitry configured to determine if a user notification condition arises for the vapor provision system, such as a low battery warning, and in response to determining a user notification condition has arisen, to control the at least one vaporizer to generate a vapor using a modified ratio of the first and second vapor precursor materials to provide a vapor with a different flavor by way of an indication that a user notification condition has arisen.

A vapor provision system configured to selectively generate differently-flavored vapors for inhalation by a user and to make use of this ability to provide user feedback. The system includes a first vapor precursor material having a first flavor and a second vapor precursor material having a second, different, flavor one or more vaporizers arranged to generate vapor from a selectable ratio of the first and second vapor precursor materials to provide a vapor with a selectable flavor for normal use; and control circuitry configured to determine if a user notification condition arises for the vapor provision system, such as a low battery warning, and in response to determining a user notification condition has arisen, to control the at least one vaporizer to generate a vapor using a modified ratio of the first and second vapor precursor materials to provide a vapor with a different flavor by way of an indication that a user notification condition has arisen.