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Coalition hopes to cut CO deaths

U.L Listed 2034 Carbon Monoxide Alarm Detectors do not alarm until a concentration of 70 Parts Per Million (PPM) is present for between 50 and 240 minutes (4 hours). If you are of vulnerable health (Heart, respiratory, infant) you will need better protection. For an example,these Listed alarms may leave your household in concentrations of 50 PPM chronically and you may be experiencing symptoms you will just "tough" out or medicate for and the alarm on the wall is not alerting you to the concentration.
The packaging on the alarm tells you this in writing but they reference 30 PPM
Visit www.cosafety.org for free consumer brochure referencing carbon monoxide hazards from recreational vehicles, motor vehicles, fork lifts, wood burning systems and of course gas and oil fueld appliances.