1. Information About Carbon Monoxide
Carbon Monoxide PPM Levels
(model 8LLDCO with digital display only)
Model 8LLDCO is equipped with a digital display that shows levels of
CO (displayed in PPM – parts per million). Learn the difference between
dangerous, high, mid and low levels.
Dangerous Levels:
When someone is experiencing symptoms of CO poisoning and CO read-
ings are generally above 100 PPM. Anytime someone is experiencing the
symptoms of CO poisoning this should be treated as an emergency. See
“What to do When the Alarm Sounds” (inside front cover).
High Levels:
Generally above 100 PPM, with no one experiencing symptoms. This
should be treated as an urgent situation. See “What to do When the
Alarm Sounds” (inside front cover).
Mid Levels:
Generally between 50 PPM to 100 PPM. This should be cause for concern
and should not be ignored or dismissed. See “What to do When the
Alarm Sounds” (inside front cover).
Low Levels:
Generally below 50 PPM. Kidde recommends you take action to eliminate
the source of CO. See “What to do When the Alarm Sounds” (inside
front cover).
IMPORTANT: Model 8LLCO does not have a digital display and
does not display carbon monoxide levels in PPM. If the alarm
sounds, it should be treated as a potentially serious condition.
See
“What to do When the Alarm Sounds” (inside front cover).
Possible Sources of Carbon Monoxide
Inside your home, appliances used for heating and cooking are the
most likely sources of CO. Vehicles running in attached garages can also
produce dangerous levels of CO.
CO can be produced when burning any fossil fuel, such as gasoline, pro-
pane, natural gas, oil and wood. It can be produced by any fuel-burning
appliance that is malfunctioning, improperly installed, or not ventilated
correctly, such as:
• Cars, furnaces, gas ranges/stoves, gas clothes dryers, water heaters,
portable fuel burning space heaters and generators, fireplaces, wood-
burning stoves and certain swimming pool heaters.
• Blocked chimneys or flues, back drafts and changes in air pressure, cor-
roded or disconnected vent pipes, loose or cracked furnace
exchangers.
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