Housekeeping · 화재 예방

Home Smoke Alarm Check in Six Steps: Monthly Test, Battery and Replacement

Test your smoke alarms monthly, check their power and battery type, and note the manufacturing date. Never disable an alarm or leave its battery removed.

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Wikimedia Commons · Sweetie candykim / Wikimedia Commons / CC0 1.0; original unmodified · Creative Commons CC0 1.0 Universal Public Domain Dedication ↗

The U.S. Fire Administration and NFPA advise a monthly test and maintenance according to the product manual; smoke alarms generally need replacement around 10 years from manufacture. Requirements vary by country and device type, so follow local fire guidance and the manufacturer's manual. The photo is only a visual reference.

Your try-it-at-home checklist

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1. Locate every alarm: Note detectors near sleeping areas, hallways and on each level where required. Verify placement against local guidance and the manual, and distinguish smoke alarms from carbon monoxide alarms.
2. Identify power type: Read the label or manual to determine whether it has a replaceable battery, sealed long-life battery, or hardwired power with backup. Never open or alter electrical wiring yourself.
3. Press the test button monthly: Follow the manufacturer's test procedure and listen for the audible test alarm. Keep your ear away from the loud sound and warn children or pets beforehand.
4. Address a failed test or chirp: If there is no test sound or a low-battery alert, follow the manual to replace an eligible battery or the entire alarm. Do not pry open a sealed-battery device.
5. Check age and care: Read the manufacture date and compare it with the commonly cited 10-year replacement point and your model's specified deadline. Clean only as directed; do not paint, tape over or block sensor openings.
6. Make it routine: Set a monthly reminder. If cooking causes an alarm, do not remove its battery; use approved hush mode and ventilation as directed. If fire is suspected, evacuate and call local emergency services.

U.S. Fire Administration (FEMA)Smoke Alarms ↗Official guidance: monthly testing, battery maintenance according to type, general 10-year replacement, never remove batteries just to silence nuisance alarms.National Fire Protection AssociationLearn More About Smoke Alarms ↗NFPA: test monthly with the test button, observe alarm sounds, look up model-specific instructions and replace aged detectors.Wikimedia CommonsWikimedia Commons file: Smoke alarm.JPG ↗Individual file description and reuse terms checked; Sweetie candykim / Wikimedia Commons / CC0 1.0; original unmodified Wikimedia CommonsCommons:Reusing content outside Wikimedia/technical ↗Direct hotlinking from Wikimedia servers explicitly permitted; each file's specific copyright, attribution and license conditions still apply.

Your try-it-at-home checklist

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