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2. Pre-flight safety demonstration - Wikipedia

   en.wikipedia.org/wiki/Pre-flight_safety...

   A Royal Australian Air Force aircraftswoman demonstrating the use of an oxygen mask during a pre-flight safety demonstration on board an Australian Airbus A330 MRTT. A pre-flight safety briefing (also known as a pre-flight demonstration, in-flight safety briefing, in-flight safety demonstration, safety instructions, or simply the safety video) is a detailed explanation given before take-off to ...

3. Smoke detector - Wikipedia

   en.wikipedia.org/wiki/Smoke_detector

   Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/Alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.

4. Here's Everything You Need to Know About Smoke Alarms - AOL

   www.aol.com/heres-everything-know-smoke-alarms...

   Once you have fixed your smoke alarm you should check your carbon monoxide alarm as well to make sure it’s in order, or use this travel hack to keep your house safe and sound while you are away ...

5. Security alarm - Wikipedia

   en.wikipedia.org/wiki/Security_alarm

   Ionization smoke alarms can quickly detect the small amounts of particles produced by fast-flaming fires, such as cooking fires or those fueled by paper or flammable liquids. A newer type of the smoke detector is the photoelectric smoke detector. It contains a light source, which is positioned indirectly to the light sensitive electric sensor.

6. The Best Place to Put Your Smoke Detector (Plus 3 Spots ... - AOL

   www.aol.com/lifestyle/best-place-put-smoke...

   Replace smoke detectors at least every 10 years: Don't place your life in the hands of an outdated smoke alarm. For the most part, you can plan on replacing your smoke detector at least every 10 ...

7. First Alert - Wikipedia

   en.wikipedia.org/wiki/First_Alert

   On September 4, 1992, BRK recalled all hardwired smoke alarms under the series 1839I and 2839I due to testing programs determining that corrosion could form on the alarm horn's electrical contacts, causing the piezo to fail to make any noise. [6] In May 2006, First Alert combination smoke alarms were recalled due to draining batteries rapidly. [7]