Housekeeping · 가정 안전

Six smoke alarm checks: monthly tests and ten-year replacement

A smoke alarm helps only if it works. Check placement, manufacture date, monthly tests and replacement time.

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U.S. Fire Administration

Official USFA smoke alarm maintenance guide

Link to official alarm placement, testing and replacement instructions

General U.S. guidance; follow local rules and the manual, and leave wiring to licensed professionals.

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Check for alarms inside bedrooms, outside sleeping areas and on each level; follow local installation rules.
Read the manufacture date and model. USFA recommends full replacement about ten years after manufacture.
Press the test button monthly following the manual and make sure family members recognize the sound.
Check replaceable batteries and replacement dates; follow full-unit instructions for sealed long-life models.
Remove dust only as directed; do not spray sensors with liquid or leave alarms disabled after cooking.
Replace faulty or expired alarms and use a qualified professional for hardwired installations.