Most smoke detectors contain a small amount of radioactive material called Americium-241 and should be returned to their manufacturer for proper disposal.

The US Postal Service offers instructions on USPS Postal Bulletin and also Curie Environmental Services for safely mailing smoke detectors.

Please look on the back of the smoke detector or manual for more information on where to send them or refer to the table below:

Brand Name	Company
American Sensors	Dicon Global
BRK	First Alert
Dicon Global	Dicon Global
Family Safety Products	Family Safety Products
Firex	Invensys Controls
First Alert	First Alert
Garrison	Dicon Global
Gentex	Gentex
Honeywell	Honeywell
Kidde	Kidde
Lifesaver	Kidde
Masterguard	Masterguard
Nighthawk	Kidde
North American	Dicon Global
System Sensor	System Sensor
Triad Safety Systems	Triad Safety Systems