Brooks EIB3018, Instruction Manual

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Many people are killed each year, and many more suffer ill health from Carbon Monoxide (CO)
poisoning. CO is an invisible, odourless, tasteless and extremely toxic gas. It is produced by appliances
and vehicles burning fuels, such as coal, oil, natural/bottled gas, paraffin, wood, petrol, diesel, charcoal
etc. CO is absorbed by red blood cells in the lungs in preference to oxygen - this results in rapid damage
to the heart and brain from oxygen starvation.
High levels of CO in a house can be caused by:
• Incorrectly or poorly installed fuel-burning appliances.
• Blocked or cracked chimneys/flues.
• Blocked vents or draught-proofing which makes areas with fuel burning appliances or fireplaces
airtight.
• Engines of cars, lawnmowers etc. left running in confined spaces.
• Portable paraffin or gas heaters in badly ventilated rooms.
Most people know that high levels of CO are harmful, however the period of exposure is also
important.
A low level for a long period (e.g. 150 ppm for 90 minutes) can cause the same symptoms (a slight
headache) as a high level of CO for a short period (e.g. 350 ppm CO for 30 minutes). Table A shows
how exposure to different concentrations of CO generally affects people.
Many cases of reported Carbon Monoxide poisoning indicate that while victims are aware they are not
well, they become so disorientated they are unable to save themselves by either leaving the building
or calling for assistance. Young children and household pets may be the first affected.