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  2. Fire alarm notification appliance - Wikipedia

    en.wikipedia.org/wiki/Fire_alarm_notification...

    Voice evacuation systems (also called Voice Alarm Systems) have become popular in most countries. Voice evacuation alarms typically are not as loud as horns or bells (although generally standards require the same minimum sound pressure levels), and usually sound an alarm tone (typically a slow whoop, code-3, or chime tone, although this depends ...

  3. Alarm device - Wikipedia

    en.wikipedia.org/wiki/Alarm_device

    An alarm device is a mechanism that gives an audible, visual, combination, or other kind of alarm signal to alert someone to a problem or condition that requires urgent attention. Etymology [ edit ]

  4. Flutter valve - Wikipedia

    en.wikipedia.org/wiki/Flutter_valve

    Heimlich valve: The flutter valve functions by allowing only outwards airflow from the body of the patient. Photo depicting a Heimlich valve. The construction of the flutter valve enables it to function as a one-way valve allowing airflow, or the flow of a fluid, in only one direction along the drainage tube.

  5. Emergency communication system - Wikipedia

    en.wikipedia.org/wiki/Emergency_Communication_System

    Examples include a digital electronic sign, a loud speaker that is part of a PA system, or a large flat panel display on a wall. A private communication device is a device that is designed to deliver a communication to one person at a time through a single process. Typically, a single person is in control of such a device which is usually not ...

  6. Manual fire alarm activation - Wikipedia

    en.wikipedia.org/wiki/Manual_fire_alarm_activation

    When the station was pulled, the security officers in the building would look up 5-3-1 in a master list of codes. After finding the location of the pull, they should check to see if there is a real fire. If there was, they would evacuate the building and call the fire department. Antique Holtzer-Cabot coded pull station

  7. Litter (rescue basket) - Wikipedia

    en.wikipedia.org/wiki/Litter_(rescue_basket)

    The person is strapped into the basket, making safe evacuation possible. The person generally is further protected by a cervical collar and sometimes a long spine board, so as to immobilize the person and prevent further injury. A litter essentially is a stretcher with sides (or just a raised edge) and a removable head and/or torso cover.

  8. Escape breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Escape_breathing_apparatus

    US Navy Emergency Escape Breathing Device (EEBD) Russian submarine-escape suit including an escape rebreather.. Escape breathing apparatus are a class of self contained atmosphere supplying or air purifying breathing apparatus for use in emergencies, intended to allow the user to pass through areas without a breathable atmosphere to a place of relative safety where the ambient air is safe to ...

  9. Flutter (software) - Wikipedia

    en.wikipedia.org/wiki/Flutter_(software)

    Flutter is an open-source UI software development kit created by Google.It can be used to develop cross platform applications from a single codebase for the web, [3] Fuchsia, Android, iOS, Linux, macOS, and Windows. [4]