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Alarm levels as defined by EN50291-1:2010
The table below shows the response /mes at which your CO alarm will sound;
CO Advice and Informa0on
The table below shows the effects of different levels of CO poisoning on the body;
Parts per Million (PPM) of CO
Time un/l Alarm
50
60 – 90 minutes
100
10 – 40 minutes
300
Must alarm in less than 3 minutes
Parts per Million (PPM)
Effects on Adults
100
Slight headache, nausea, fa/gue (flu-like symptoms)
200
Dizziness and headache within 2 – 3 hours
400
Nausea, frontal headache, drowsiness, confusion and rapid heart rate.
Risk to life a!er over 3 hours of exposure
800
Severe headaches, convulsions, vital organ failures. Death possible within
2 – 3 hours
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