Statistics prove that smoke detectors that are 10 years old need replaced. Detectors working for 10 years without stopping have been in use for 87,000 hours. An additional 5 million will need to be replaced each year. Each year 1100 children die from fire. An additional 11,000 are injuried, most are at night, without working smoke detectors or no detector at all.
Research shows that every second counts.
You have less than 2 - 3 minutes to get out of a fire. What can be done. Some smoke detectors have a sticker inside that has a place to put the date that the detectors was installed. If it doesn't, put a sticker inside it and mark it yourself. One near or in each sleeping area.