Carbon Monoxide Alarm Tips
Testing and Replacing
- Landlords are responsible for installing and maintaining carbon monoxide (CO) alarms in their rental units
- Landlords are required to test CO alarms in rental units annually and when the battery is replaced, changes are made to the electric circuit or a change of tenancy occurs.
- It is against the law for tenants to remove the batteries or tamper with CO alarms in any way.
- Test CO alarms every month by pressing the test button.
- Replace batteries every year.
- Replace CO alarms according to manufacturer's instructions.
Know the Sound of the CO Alarm:
- Your CO alarm sounds different than your smoke alarm. Test both alarms monthly and make sure everyone in your home knows the difference between the two alarm sounds.
- Know the difference between the CO alarms' low-battery warning, end of life warning and an emergency alarm – consult the CO alarm manufacturer’s instructions.
What to do if the CO Alarm Sounds:
- Exposure to CO can cause flu-like symptoms such as headaches, nausea and dizziness, as well as confusion, drowsiness, loss of consciousness and death.
- If your CO alarm sounds, and you or other occupants suffer from symptoms of CO poisoning, get everyone out of the home immediately. Then call 9-1-1 or your local emergency services number from outside the building.
- If your CO alarm sounds, and no one is suffering from symptoms of CO poisoning, check to see if the battery needs replacing, or the alarm has reached its "end-of-life" before calling 9-1-1.