Choosing The Proper Smoke Alarm Can Save Your Life ~
Do you have photoelectric fire detectors or ionization smoke alarms in your home? In case of a home fire, one may save you and the other may not. According to a 1994 study at Texas A&M, it was determined there is a 4% probability of a photoelectric detector failing to detect a smoldering fire, while there is a 56% probability of failure by an ionization detector in the same fire condition.
This doesn't seem possible, does it? After all, you would think that having a new battery in your smoke detector and testing it to ensure that it is in proper working order, that you and your family should be safe, right? Possibly not! There is compelling research-based
evidence which demonstrates that ionization-type detectors are ineffective in smoldering type fires, which are the most common cause of fatalities in home fires. In fact, tests have shown that ionization type smoke alarms aren't triggered and therefore don't sound - even after the level of carbon monoxide and smoke reaches deadly concentrations. Numerous documented residential fire deaths have occurred with installed ionization type detectors. Had there been a properly installed photoelectric detector in those situations, an alarm would have sounded to warn the occupants.
One of the reasons for the difference in the performance of these two fire detectors is in the way they're activated.
Ionization Detectors
The ionization smoke detectors use an ionization chamber and a source of ionizing radiation to detect smoke. This smoke detector is more commonly used because it is inexpensive.
Photoelectric Detectors
Photoelectric smoke alarms contain a light source and a light-sensitive electric cell. Smoke entering the detector deflects light onto the light-sensitive electric cell, triggering the alarm. These alarms are more sensitive to large particles given off during smoldering fires, such as an electrical fire - the kind of fire that usually occur at night when people are sleeping.
For many years, authorities have urged homeowners to install smoke alarms without consideration to the type of potential fire ignition or the quality of smoke detection. This was based on the urgency to equip all homes with smoke detection with what was readily available on the market.
It's no surprise, then, that more than 90% of homes in the United States only have the ionization detection technology, leaving those occupants vulnerable to the most common and deadly type of fire.
To ensure your family gets the early warning they need to survive the toxic gases of a smoldering fire, install photoelectric smoke alarms immediately in and outside sleeping areas. They cost a bit more than the ionization detector, but are now readily available at local home improvement and hardware stores.
Don't forget to test your smoke alarms monthly and change alkaline batteries at least once per year, or as instructed. Using a familiar date (such as your birthday or when you change your clocks) is helpful in remembering to do this.
Along with properly installing and maintaining new and existing smoke alarms, develop and practice an escape plan that includes two ways out of every room, so that everyone in the home knows what to do if the smoke alarms sounds. Home occupants who practice an escape plan reduce their time to escape in every type of fire.
For more information about this important issue, watch the series "Stop The Children Burning" on youtube.com.
Sources: The Safety Report, www.live-safe.org.
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Units Sold: Approximately 1,200
Retailer: RockingHorseDepot.com (sold from November 2006 through December 2009 for between $105 and $185).
Units Distributed: About 13,000 (an additional 115,000 were sold outside the U.S., including 3,000 in Canada)
SignOn San Diego reports that this past Saturday morning at approximately 2:00 a.m., an Emerald cab driver -- 52-year-old Sam Hassan Daly -- plowed into a crowd of people who were exiting the popular Gaslamp District nightclub "Stingaree," injuring 23 people - six critically. 





