Check the smoke alarm type before disposal
Remove the smoke alarm from the ceiling or wall
Take out the batteries
Recycle or dispose of the batteries according to local rules
If the alarm contains a sealed lithium battery, follow local battery recycling instructions
If the alarm is hardwired, turn off power before removal
Separate any detachable parts if required by local recycling rules
Take ionization smoke alarms to a household hazardous waste facility if required
Take photoelectric smoke alarms to an electronics recycling center if accepted locally
Dispose of non-recyclable alarms in regular trash only if local rules allow
Follow manufacturer instructions for disposal
Check local waste management guidelines for special disposal requirements