If you have a Carbon Monoxide detector made before 2005... You may want to upgrade. New standards have been set for the detectors... And experts recommend that you upgrade... Even though your old detector is still working.
Ronica Farrar with Texas Panhandle Poison Center says, "You can purchase Carbon Monoxide alarms for as little as 20 dollars. That's a small price to pay to know you have the most current features available."