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据说有放射性材料

Recycling smoke detectors is a bit more nuanced than tossing them in your curbside bin—they contain electronics, and some types include radioactive material. Here’s how to handle them safely and responsibly:
Step 1: Identify the type
Most detectors fall into two categories:
Ionization smoke detectors → may contain a tiny amount of Americium-241
Photoelectric smoke detectors → no radioactive material, but still e-waste
Step 2: Choose the right disposal method

1. Manufacturer take-back programs (best for ionization units)
   Some brands accept old units by mail:
   First Alert
   Kidde
   Check their websites for return instructions. You usually mail the unit back for proper handling.
2. Local household hazardous waste (HHW) or e-waste sites
   Your area likely has drop-off options for electronics:
   County or town recycling centers
   Special “hazardous waste collection days”
   These accept both ionization and photoelectric detectors.
3. Retailer recycling programs
   Some stores that recycle electronics may accept smoke detectors:
   Best Buy (varies by location—call first)
   What NOT to do
   Don’t put them in regular recycling bins
   Don’t open or dismantle the detector
   Don’t throw ionization units in the trash unless your local regulations explicitly allow it
   Don’t forget the battery
   Remove and recycle separately:
   Alkaline → usually OK for household trash or battery bins
   Rechargeable (Li-ion, etc.) → recycle at battery drop-off points

多谢。我上best buy 问问

这个还能回收啊