⚠️ Smoke detectors: hazardous waste. Ionization smoke detectors contain a tiny sealed radioactive source (americium-241). Never put it in the regular trash — use a facility or take-back below.
Best ways to dispose of smoke detectors (best → last resort)
Mail-inBest for ionization type
The manufacturer (First Alert / BRK, Kidde) accepts old ionization detectors by mail-back — check the brand's website.
Hazardous-waste facilityAlternative
Some HHW programs accept smoke detectors.
How to prepare it
Remove the battery first (recycle it separately).
Note the brand/model for the manufacturer's mail-back instructions.
Don't
Never open or break apart the sensor chamber.
Don't assume it's fine in the trash — use manufacturer take-back for ionization units.
Find a drop-off near you
Acceptance varies by city — always check your local program first.
What's the best way to dispose of smoke detectors?
Mail-in (best for ionization type): The manufacturer (First Alert / BRK, Kidde) accepts old ionization detectors by mail-back — check the brand's website.
Can you put smoke detectors in the trash?
No — this is hazardous and should not go in the regular trash. Never open or break apart the sensor chamber.
Where can I recycle smoke detectors near me?
Search a drop-off with the Earth911 locator or "smoke detector disposal near me." Acceptance varies by city, so confirm with your local program.