When fire breaks out, the smoke alarm, functioning as an early warning system, reduces the risk of dying by nearly 50 percent. Alarms are most people's first line of defense against fire.

In the event of a fire, a smoke alarm can save your life and those of your loved ones. They are the single most important means of preventing house and apartment fire fatalities by providing an early warning signal -- so you and your family can escape. Smoke alarms are one of the best safety features you can buy and install to protect yourself, your family and your home.

Where to install Smoke Detectors

Install smoke alarms on every level of your home, including the basement. Many fatal fires begin late at night or in the early morning. For extra safety, install smoke alarms both inside and outside the sleeping area. For added safety, install smoke alarms in every room where people sleep. Choose a smoke alarm that bears the label of a recognized testing laboratory.

Smoke alarms should be installed on the ceiling or 6 to 8 inches below the ceiling on side walls. Since smoke and many deadly gases rise, installing your smoke alarms at the proper level will provide you with the earliest warning possible. Always follow the manufacturer's installation instructions.

Maintaining your Smoke Detectors

• Install a new battery in all smoke alarms at least once a year. Install a new battery immediately if an alarm “chirps” to indicate a low battery.
• Replace smoke alarms that use extended-life, lithium batteries when the alarm “chirps” or fails to respond to periodic testing. The batteries in these units cannot be replaced.
• Replace all smoke alarms when they are 10 years old.
• Test smoke alarms every month. Use the test button, or an approved smoke substitute, and clean the units, according to manufacturer’s instructions. Do not use an open-flame device to test the alarm.
• Special smoke alarms are made for people who are deaf or hard of hearing. These alarms use strobe lights. Vibrating devices may also help in some cases