Myths and Misconceptions

The following are the top 10 most common myths and misconceptions about carbon monoxide.

If anyone feels ill, get everyone, including your pets, out of the house regardless if the alarm is sounding or not!

Be in the know when it comes to CO.

Here are top 10 common myths and misconceptions.

Truth

Carbon monoxide is a poisonous gas that is dangerous at any level. It's created when fuels like wood, oil and gas burn. Normally, the small amounts caused by our heating equipment are vented to the outside and do not build up inside.

Myth

Carbon monoxide is normally harmless, but can be dangerous at high levels.

Truth

Carbon monoxide is odourless, colourless and tasteless, 
which is why it's called the "silent killer."

Myth

Carbon monoxide has a distinctive odour you can smell.

Truth

Carbon monoxide builds when the air circulating through our homes and heating systems doesn't get vented properly. Venting problems such as birds building nests in chimneys can happen in homes of any age.

Myth

Carbon monoxide problems are caused by old heating systems.

Truth

Heating systems (furnaces, fireplaces, wood-burning stoves, and chimneys) should be checked every year by a certified heating technician before the heating season begins.

Myth

Fuel-burning equipment like furnaces and fireplaces should be inspected every two 
to three years to make sure 
it's safe.

Truth

There's always the risk that carbon monoxide will leak into the house, even if the garage door is open.

Myth

It's ok to use a gas or charcoal barbecue or run a car in a garage as long as the garage door is open.

Truth

Carbon monoxide poisoning has symptoms that are similar to the flu: nausea, headache, burning eyes, confusion, drowsiness, and loss of consciousness. The key difference is that there is no fever with CO poisoning. The symptoms tend to disappear when a person gets fresh air. These are all warning signs.

Myth

There are no physical symptoms of carbon monoxide poisoning.

Truth

If anyone feels ill, get everyone, including pets, out of the house regardless if the alarm is sounding or not. Call 911 or your local fire department for help.

Myth

You should only call 911 if your carbon monoxide alarm keeps going off after you've opened the windows and doors.

Truth

Many victims of carbon monoxide poisoning recover with treatment. However, in very severe cases, CO poisoning can cause permanent brain damage.

Myth

Certain levels of carbon monoxide can kill, but survivors can expect a complete recovery.

Truth

To protect yourself and your loved ones, ensure that all your fuel-burning appliances and vents are inspected yearly by a TSSA-certified fuel technician and that you have working CO alarms in your home – they are mandated if you have a fuel-burning appliance, fireplace or an attached garage.

Myth

CO alarms are the only way to protect yourself against carbon monoxide poisonings.

Truth

Not all carbon monoxide alarms sold in Canada are certified to Canadian Safety standards. To make sure you're buying one that is certified, look for the CSA or ULC symbols.

Myth

All carbon monoxide alarms sold in Canada are certified to Canadian Safety standards.