5
Alarm levels as defined by European Norm EN50291-2010*
The table below shows the response mes at which your CO alarm will sound:
CO Advice and Informaon
The table below shows the physiological effects of exposure to increasing concentraons of CO:
Parts per Million (PPM) of CO
Time unl 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, fague (flu-like symptoms)
200
Dizziness and headache within 2 – 3 hours
400
Nausea, frontal headache, drowsiness, confusion and rapid heart rate.
Risk to life aer over 3 hours of exposure
800
Severe headaches, convulsions, vital organ failures. Death possible within
2 – 3 hours
* EN50291-2010 is a European Standard for "Electrical apparatus for the detecon of carbon monoxide in domesc premises - Part 1: Test
methods and performance requirements"
