How does smoke detector ensure life

Small but mighty, each year smoke alarms save thousands of lives. Though these little UFO-shaped discs keep you safe, to the average home or business owner they often remain a mystery.
Do you know why having the right “type” of smoke alarm is important? Unfortunately, fire is not fire — there are different types. That’s why it is essential to the safety of your home or business to ensure you have coverage from both of the two varieties of smoke alarms.

Types of Smoke Alarms

1. Photoelectric Smoke Alarms

These alarms identify smoldering flames (smoke). They are highly effective at detecting slow-burning, smoldering fires before they burst into flames.

2. Ionization Smoke Alarms

These are more responsive to fires with flames. They excel at detecting fast-flaming fires that produce little visible smoke.

3. Combination Alarms

Combo photoelectric and ionization alarms in a single detector. Never assume a smoke alarm is a combination-type unless it is clearly stated on the package. Call the manufacturer to confirm.
Key Takeaway: For maximum safety, your home or business should have both photoelectric and ionization coverage — either through two separate units or a combination alarm.

How Do Smoke Alarms Work?

Running off battery power or wired into your home, the typical smoke alarm utilizes two parts to do its job: a sensor to detect smoke, and a loud electronic horn to wake you up. However, this is where their similarities end…

Photoelectric Smoke Alarm Operation

Using a light and a sensor positioned at 90-degree angles to one another, photoelectric detectors sound the alarm when interruptions or scatters in light are detected — these interruptions are caused by smoke from smoldering fires.

Ionization Smoke Alarm Operation

Better at detecting small amounts of smoke from flaming fires, ionization alarms employ an ionization chamber and ionizing radiation. These alarms generate so-called “alpha particles” in the ionization chamber, which ionize oxygen and nitrogen by knocking an electron off, thus resulting in both a free, negatively charged electron and a positively charged one.
These particles are then attracted to one of two plates located within the detector with correspondingly opposing voltage. When smoke enters this chamber, minute changes in current occur, disrupting the charge and sounding the alarm.
Important note: The amount of alpha radiation in these alarms is so small it cannot even penetrate a sheet of paper. However, it can harm you if released into the air — yet another reason poking at items you don’t understand when they don’t work is not recommended.

Photoelectric vs Ionization: Quick Comparison

Looking for Something More Stylish?

Gone are the days when smoke detectors had to be ugly UFO-shaped discs. Here are some standout options:

Chic-a-Dee Bird Style Smoke Detector

This cute little bird-shaped photoelectric smoke alarm sounds at the appearance of smoke, getting louder and louder as the smoke thickens. Perfect for those who want safety without sacrificing style.

ANKA Smoke Alarm (Moth Shaped)

This moth-shaped photoelectric smoke alarm is so lightweight, it can be installed simply with 3M tape. Its entire surface is a test switch — just give it a pat to turn it on and off!

Cool Smoke Detector by Jacob Jensen

Designed by Jacob Jensen, this futuristic-looking detector features a microprocessor programmed for daily alarm checks. It also adjusts sensitivity for optimal detection (such as for cooking and fireplace use), and beeps to alert you when it needs cleaning.

ANKA Smoke Detector (Light Bulb Base)

The ANKA smoke detector is unique in that it can be attached between a light bulb and the lamp base of ceiling light fixtures with a simple screw. It uses the power of the lamp to recharge its battery, blinking red or green when you turn the light on to indicate power status. In the event of fire, it produces both a sonar and lighting alert.