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WHAT I SHOULD KNOW
CARBON MONOXIDE (CO) POISONING
Carbon monoxide is a product of incomplete combustion of organic matter. It is a toxic gas, but being
colorless, odorless, tasteless, and initially non-irritating, it is very difficult for people to detect.
CONCENTRATION
35 ppm (0.0035%)
100 ppm (0.01%)
200 ppm (0.02%)
400 ppm (0.04%)
800 ppm (0.08%)
1,600 ppm (0.16%)
ppm - Parts Per Million - is used to describe concentrations of contaminants in air.
If your unit is in CO critical concentration level ALARM, keep calm and carry out the following
actions in the priority order:
•
Open all windows and doors to increase the rate of ventilation
•
Turn off the fuel-burning appliances where possible
•
Evacuate the building leaving the windows and doors open and re-enter the property only when
the alarm has stopped
•
Get immediate medical assistance for anyone suffering the effects of carbon monoxide poisoning
(nausea, headache), and report that carbon monoxide inhalation is suspected
•
Contact the gas or other fuel supplier on their emergency phone number in order to identify and
eliminate the source of carbon monoxide emissions
•
Do not use the fuel-burning appliance again until it has been verified and confirmed by a
competent person according to national regulations
There could be other sources of carbon monoxide emissions. For example large amount of
city gas, tobacco smoke or smoldering fire can cause CO concentration ALARM.
Clean the outside case of device occasionally with a clean tissue to ensure that the holes of
the unit are not blocked with dirt or dust.
Some household substances can affect the sensitivity of the detectors in a short or long term.
Avoid the use of model paint, model glue or nail polish remover close to the alarm. Do not use
aerosol sprays, household cleaners, polishes or perfumes close to the device.
SYMPTOMS
Headache and dizziness within six to eight hours of constant exposure
Slight headache in two to three hours
Slight headache within two to three hours; loss of judgment
Frontal headache within one to two hours
Dizziness, nausea, and convulsions within 45 min; insensible within 2 hours
Headache, increased heart rate, dizziness, and nausea within 20 min; death in less than 2 hours
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