How Photoelectric Smoke Detectors Save Lives

Photoelectric smoke detectors work differently than the standard ionization smoke detectors and provide an earlier warning of smoldering fires. In fact, ionization smoke alarms typically respond 15 to 50 minutes slower than photoelectric smoke alarms in smoldering fires.  Some experts compare this lapse in warning to an airbag inflating 15 minutes after an accident, by then it is too late.

Considering that the majority of fatalities from residential fires occur due to smoke inhalation rather than flames and that approximately two thirds of all fire fatalities occur at night while people are sleeping, the difference between photoelectric and ionization smoke detectors can be a matter of life and death.

Ionization smoke detectors respond approximately 30–90 seconds quicker than photoelectric detectors for “fast flame” fires only.  Several studies also reveal, however, that ionization smoke alarms failed to activate at all in 20 to 25% of fires. It is recommended to utilize each type of smoke detection technology for the best protection against fast flame and smoldering fires.

How Does a Photoelectric Smoke Detector Work?

Photoelectric smoke detectors provide the earliest warning of smoldering fires by detecting even the slightest wisp of smoke in the air. They utilize a sensitive instrument called a photoelectric cell which projects a focused beam of continuous light onto a mirror. If a wisp of smoke enters the chamber, a slight refraction of light occurs which sounds the alarm. Photoelectric smoke alarms can detect a fire before the appearance of flames.

Early notification of smoke and fire is critical in residential and commercial settings. Photoelectric smoke detection technology has been proven to save lives by providing the earliest warning at the beginning stages of a fire.  

HRSS Offers Photoelectric Smoke Detection Technology

High-Rise Security Systems is a leading fire and life safety company offering comprehensive services including system design, fire alarm inspection, testing, maintenance and monitoring 24/7/365. We are premier distributors for fire alarm system equipment from the most well-known fire alarm manufacturers such as Notifier® by Honeywell.  Our experienced fire protection consultants provide assistance in selecting the right equipment for your building, designed for maximum safety and earliest warning of smoke or fire.

HRSS is well known as an authority on commercial fire alarm system design, protecting all types of property in and around Chicago. We provide complete code compliance and UL listed equipment to various types of property including high-rise buildings, low rise structures, mass medical complexes and sprawling school campuses. Contact us to learn more about our services and equipment including photoelectric smoke detectors.

This article was originally published at https://hrsschicago.com/fire-alarm-systems/types-of-fire-detection-systems/how-photoelectric-smoke-detectors-save-lives/