What causes Carbon Monoxide nuisance alarms?
Pollution and atmospheric conditions in some areas cause low levels of CO to be present for long periods of time. In fact, these "background" conditions may increase Carbon Monoxide (CO) to over the 10% COHb equivalency level, causing older CO alarms to sound even though conditions inside the home are not truly hazardous. However, newer alarms have been designed to reduce sensitivities to compensate for these background conditions. Treat all CO alarm warning sounds as real, until it has been verified that there is no threat from equipment inside the dwelling.

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1. What is carbon monoxide?
2. What is the effect of exposure to Carbon Monoxide?
3. What is your risk of Carbon Monoxide poisoning?
4. How can you protect yourself from Carbon Monoxide poisoning?
5. What are Carbon Monoxide alarms?
6. Do I need a Carbon Monoxide alarm?
7. What causes Carbon Monoxide nuisance alarms?
8. What do I need to know if I buy a Carbon Monoxide alarm?
9. What do I do if my Carbon Monoxide alarm sounds?
10. Is there a Carbon Monoxide safety checklist?
11. What additional safety tips should I know?