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If smoke may be coming from a neighbor’s home, move away from danger and call your local emergency number or fire department now. Do not go inside to investigate. If smoke or an alarm affects your own building, get outside by a safe route and stay outside; tell responders where the smoke is and whether anyone may be inside.
What to do first
- Move clear of smoke and heat. Do not approach visible flames or heavy smoke, and do not enter the neighbor’s home. If your own home or building is affected, leave by a route that is safe to use.
- Call emergency services. In the United States, call 911; elsewhere, use your local emergency number. Give the address, explain that you smell smoke and where it seems to be coming from, and tell the dispatcher if you know someone may be inside or trapped. Do not delay the call to confirm the source. The U.S. Fire Administration (USFA) advises people who are unsure whether it is safe to use an extinguisher to leave and call 911: Choosing and Using Fire Extinguishers.
- Warn others only if you can do so without entering danger. Do not re-enter a smoke-filled area or put yourself at risk to alert someone. Give responders any information you have about occupants.
- Stay outside until responders say it is safe. Do not go back in for people, pets, or belongings. Tell firefighters if anyone may remain inside.
If smoke affects your building
When you have a safe exit
Leave promptly, close the door behind you if you can, and use stairs in a multi-unit or high-rise building. Do not use an elevator unless firefighters direct you to. Go to the outside meeting place, stay there, and tell the fire department if anyone is trapped. Follow responders’ instructions if they differ from general guidance. See USFA’s Home Fire Escape Plans.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
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First Alert Battery Smoke Alarm | $29.99 | Buy on Amazon |
| 2 |
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First Alert Battery Smoke Alarm | $16.99 | Buy on Amazon |
| 3 |
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First Alert Battery Smoke Alarm | $51.42 | Buy on Amazon |
| 4 |
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Kidde Compact Smoke Detector, AA Battery-Powered, 10SDR | $18.97 | Buy on Amazon |
| 5 |
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X-Sense Smoke Detector, 10-Year Battery, UL 217 Certified, SD2J0AX, 1-Pack | $19.99 | Buy on Amazon |
USFA says residents could have less than two minutes to escape a home fire once a smoke alarm sounds. This is general preparedness guidance, not a prediction of how much time anyone will have in a particular fire.
When smoke or heat blocks your route
Do not try to move through smoke or heat. Close the door between you and the fire, cover vents and cracks around it with cloth, call 911 or your fire department, and clearly report your location. Signal at a window with a light-colored cloth or flashlight. These steps follow USFA’s If You Cannot Escape From A Fire guidance.
#1 Best Overall
- First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
- Battery-operated alarm allows for easy installation and maintenance
- Front access battery compartment makes for easy battery replacements
- End-of-life warning lets you know when it’s time to replace the alarm
- Test/silence button for efficient testing to ensure alarm is working properly
Why smoke is an emergency
Smoke can be dangerous even when flames are not visible. USFA states that “Smoke and toxic gases kill more people than flames do” in its Learn About Fire guidance. Treat unexplained smoke as potentially serious rather than waiting to see whether it clears.
Prepare before there is smoke
Smoke alarms are for early warning and preparedness, not something to buy or install during an active emergency. USFA recommends alarms on every level of the home and inside and outside sleeping areas, interconnected so that when one sounds they all sound, and replacement ten years from manufacture. Its Smoke Alarms page was last reviewed May 9, 2023.
Rank #2
- First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
- Battery-operated alarm allows for easy installation and maintenance
- Front access battery compartment makes for easy battery replacements
- End-of-life warning lets you know when it’s time to replace the alarm
- Test/silence button for efficient testing to ensure alarm is working properly
The emergency and escape guidance cited here is from the U.S. Fire Administration and uses 911. If you are outside the United States, call your local emergency number; building procedures and fire-service directions vary by location.
Recommended Free Tools
Quick Recap
Best Value
- 10-YEAR BUILT-IN BATTERY: A sealed lithium battery powers the smoke alarm for up to 10 years, helping reduce battery replacements, low-battery chirps, and routine maintenance across bedrooms, hallways, rentals, and family homes
- FEWER COOKING NUISANCE ALARMS: Photoelectric sensing helps reduce unwanted alarms from everyday cooking fumes and steam, so your home stays covered with fewer unnecessary interruptions during daily use
- ETL LISTED TO UL 217: Independently tested and ETL listed to meet the UL 217 safety standard for smoke alarms, with a loud local alert and LED indicator for bedrooms, hallways, living rooms, and basements
- EASY TO INSTALL AND USE: Mount each battery operated smoke detector in minutes with the included hardware, no wiring or electrician required; one button lets you run self-tests or silence nuisance alarms
- STANDALONE, CHECK BEFORE BUYING: SD2J0AX works independently with no Wi-Fi, app alerts, base station use, or wireless interconnection; for alarms that sound together, SD19-W is the X-Sense wireless interconnected model
Rank #4
- SMOKE DETECTION: Model 10SDR detects smoke with over 25% faster smoke detection*; sounds a loud 85-decibel alarm with red LED light for clear visual warnings; compact design suitable for homes
- AA BATTERY OPERATION & WARRANTY: Powered by two AA batteries (included) for easy, no-wiring setup; backed by 10-year limited warranty** that starts from date of purchase
- REDUCED FALSE ALARMS: Uses advanced sensing technology that helps distinguish between real smoke and everyday cooking or steam; helps reduce false alarms while maintaining quick, accurate detection when smoke is present
- TESTED FOR RELIABILITY & COMPLIANCE: Rigorously tested to meet UL 217 10th Edition and FCC standards; helps ensure compliance with recognized safety requirements and consistent performance in residential environments
- BUILT FOR HOMEOWNERS AND PROFESSIONALS: Designed for those who prioritize dependable, code-compliant detection; supports safety goals for homeowners, property managers, contractors, and professionals seeking long-term home safety assurance
Rank #3
- First Alert's Precision Detection advanced sensing technology complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency
- Battery-operated alarm allows for easy installation and maintenance
- Front access battery compartment makes for easy battery replacements
- End-of-life warning lets you know when it’s time to replace the alarm
- Test/silence button for efficient testing to ensure alarm is working properly
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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