Survival depends on being warned as early as possible and having an escape plan. Smoke detectors are inexpensive and are required by law in many localities. Check local codes and regulations before you buy your smoke detector because some codes require specific types of detectors. They provide an early warning which is critical because the longer the delay, the deadlier the consequences. As a minimum detectors should be located near bedrooms and one on every floor.
Smoke detectors can save lives, but only if properly installed and maintained.
Consider relocating the detector rather than disconnecting it if it is subject to nuisance alarms, e.g. from cooking. Excessive dust, grease or other material in the detector may cause it to operate abnormally. Vacuum the grill work of your detector. Escape Plan Planning ahead, rehearsing, thinking, and acting clearly are keys to surviving a fire. It is an important partner with smoke detectors and it will prepare you for a fire emergency.