Check the fire codes in your area before purchasing because some areas have strict requirements for specific types of smoke detectors. Call your local fire department if you are unsure what you should buy.
According to the U.S. Consumer Product Safety Commission (CPSC), you want to install at least one smoke detector on every level of your home. Make sure you place smoke alarms close to bedrooms, install them on the ceiling or on the wall 6 to 12 inches from the ceiling.
Since the peak times for home fire deaths are 10 p.m. to 6 a.m., according to the IAFC, make sure you can hear the alarms when you are asleep. The warning signal must be a sound that will wake you. If you are a heavy sleeper, consider putting a smoke alarm closer to your bed and switching to one with a more distinct sound.
According to the CPSC, you should replace the batteries in your smoke detectors at least once a year. A good way to remember this, according to the IAFC, is to change the batteries in your smoke detectors when you change your clocks back in the fall.
Do not disconnect the battery from your smoke alarm. If your alarm is sounding unnecessarily, due to cooking, for instance, try moving your smoke detector farther from the problem area.
The CPSC suggests following the manufacturer's instructions to test and clean your smoke detectors once a month. Vacuum the dust and excess materials that could cause your smoke alarms to malfunction monthly, as well.
In addition to replacing the batteries annually, remember smoke detectors do not last forever. According to the IAFC, you should replace your smoke detectors every 10 years.