Ionization vs photoelectric - NFPA
Ionization smoke alarms are generally more responsive to flaming fires. How they work: Ionization-type smoke alarms have a small amount of radioactive material between two electrically charged plates, which ionizes the air and causes current to flow between the plates. When smoke enters the chamber, it disrupts the flow of ions, thus reducing ...
Ionization Smoke Alarm Chart. Download free. - NFPA
Ionization Smoke Alarm Chart This chart provides a detailed overview of one of the most commonly used smoke alarms. The chart features expert information and helpful visuals depicting how ionization smoke alarms work to detect smoke and keep people and property safer.
Smoke Alarm Types - NFPA
Mar 6, 2023 · Determining the correct smoke alarm for you situation can be difficult. This comprehensive guide from NFPA can help you choose the right one.
Installing and maintaining smoke alarms - NFPA
An ionization smoke alarm is generally more responsive to flaming fires, and a photoelectric smoke alarm is generally more responsive to smoldering fires. For the best protection, both types of alarms or combination ionization-photoelectric alarms, also known as dual sensor smoke alarms, are recommended.
Fire Alarm Initiation - NFPA
Apr 14, 2021 · A guide to fire alarm initiation, covering the basics and key components.
Smoke Control Systems - NFPA
Feb 5, 2021 · The importance of smoke control systems and NFPA 92. NFPA will be closed December 25 through January 1 so that our NFPA family can celebrate the holidays with their families.
A Guide to Fire Alarm Basics - NFPA
Mar 3, 2021 · A fire alarm system is a crucial part of the fire and life safety of a building and its occupants. There are many functions that are served by the fire alarm system and it all may be a bit confusing to someone new to fire alarms, so I decided to create a …
Restaurant Fire Protection Basics - NFPA
Apr 27, 2021 · An overview of fire protection requirements for dine-in restaurants with full kicthens
Smoke Alarm Use in the United States - NFPA
The different types of smoke alarms households reported having in the 2024 survey were relatively evenly split, with the largest portion (42 percent) reporting having ionization smoke alarms, 29 percent reporting having photoelectric smoke alarms, and 6 percent reporting having ionization and photoelectric alarms (23 percent didn’t know what ...
Learn More About Smoke Alarms - NFPA
Smoke alarms cut the risk of dying in a home fire in half.