Smoke Detectors Smoke Detectors contain radioactive materials that shouldn’t be thrown in the trash. You have a variety of options to properly dispose of them. The USPS wrote a fabulous bulletin about returning them to the manufacturers. First Alert/BRK C/O Disposal 3920 Enterprise Court, Aurora, IL, 60504Curie Services (505) 888-9392SCARCE for a small fee (630) 545-9710 800 S. Rohlwing Rd., Addison, IL, 60101