From Firehouse.com
THE SEPTEMBER NIGHT that turned Desiree Wylie's days into a marathon of misery started with a full bladder.
It was a half-hour before midnight. She awoke to use the bathroom. She knew something was wrong when she flipped the light switch and nothing happened. In the hallway, she felt a draft. Then, she smelled smoke.
Horror hit hard.
"Jessica! Fire!" she screamed up the stairs, where her 22-year-old daughter, Jessica Torres, slumbered with her sons, 4 and 3.
The ensuing chaos was full of noise: the women's cries of terror and calls for help, the thundering of their feet as they scrambled to escape, the sounds of destruction below as fire devoured the first floor.
But not the shriek of a smoke detector.
Wylie said she had at least seven scattered throughout her three-story home in Coatesville, all with fresh batteries she had put in to prepare for a recent house inspection.
"I didn't hear a single one going off," Wylie said. "All I heard was the kids screaming, us panicking."
Although firefighters universally trumpet the life-saving benefits of smoke detectors, Wylie witnessed - with heartbreaking results - the shortcomings of ionization alarms, the cheapest and most commonly used smoke detectors.
Because ionization detectors are less sensitive to the smoke produced by smoldering fires, they can take a half-hour or more longer than their competitor - photoelectric detectors - to alert residents of brewing danger.
For Wylie, that delay was the difference between life and death.
Within seconds, the smoke grew so thick that she couldn't get to her 11-year-old son, Brian Kelly Westmoreland Jr. It turned so toxic that Torres, who had smashed a third-floor window to escape, couldn't get to her sons, Tyrone and Tyzhier Hill, who had collapsed unconscious out of reach.
All three boys died of smoke-inhalation in the Sept. 21 blaze, which smoldered in a trash can behind the house before spreading. Investigators ruled the fire at Wylie's house accidental.
A crusade against ion detectors
Tragedies like Wylie's infuriate Jay Fleming, a Boston deputy fire chief. He has made it his life's crusade to educate fire and government officials and the public about the potentially deadly deficiencies of ionization, or ion, detectors.
"It's needless, just totally didn't have to happen," Fleming said of the Coatesville boys' deaths.
When it comes to fire protection, consumers have three choices in smoke-detector technology: ion or photoelectric alarms, or a hybrid of the two.
The ion device, which uses a small amount of radioactive material to create an electric current within the unit, sounds when smoke particles interrupt the current.
Photoelectric detectors use optical technology; they go off when smoke particles reflect part of a light beam onto a photo detector.
Priced as low as $7, ion alarms typically cost half as much as their photoelectric counterpart. And although both technologies have been around for decades, photoelectric units until the early 1980s had to be hard-wired, making them less popular than the battery-operated ion alarms.
That affordability and convenience made the ion alarms a best-seller. The National Fire Protection Association figures that 96 percent of American homes have smoke detectors, and Kidde, one of the top manufacturers of both detectors, estimates that 90 percent of those alarms are ions.
But the two technologies react differently to different smoke.
In flaming fires, ion alarms activate faster, by about 30 seconds, because they are more sensitive to the tiny particles such fires emit.
But smoldering fires, the type that happen overnight when people sleep, produce larger particles that set photoelectric alarms off faster - by as much as 30 minutes, according to the National Institute of Standards and Technology (NIST) and controlled burns done by Fleming for Hook, a magazine for firefighters.
Ion alarms also sometimes fail to sound in smoldering fires even when smoke has thickened enough to significantly degrade visibility, NIST acknowledged in August 2007 testimony to the Boston City Council.
Further, ion alarms are easily triggered by shower steam and cooking smoke, Fleming found, a drawback that prompts plenty of frustrated folks to yank out - and sometimes forget to reinsert - the batteries.
Because smoke can incapacitate and kill in minutes, Fleming says, such shortcomings are unforgivable.
"Since 1990, the industry's and government's refusal to recognize this problem has resulted in thousands of needless deaths," Fleming said.
Fleming believes the best fire protection is a photoelectric detector, and says fire-safety advocates should educate the public about its superiority. He wants manufacturers to put warning labels on the packaging of ion alarms, alerting buyers to their delay in smoldering fires.
And fire investigators should start keeping track of what kinds of detectors, if any, were present in burned homes or businesses to develop data that would demonstrate which technology is better, he said.
Hook took up Fleming's cause in an exhaustive report last July, and the International Association of Fire Fighters joined their efforts shortly afterward.
"Don't just change your batteries; change your smoke detector too," IAFF officials urged in an October announcement, in which they called for federal, state and local leaders to change building codes to require photoelectrics.