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Ever wonder why our charcoal grills must only be used outside or why we shouldn’t use the oven to heat our homes?

It’s because of carbon monoxide (CO) poisoning. Known as the “Silent Killer,” this odorless, tasteless, and colorless gas builds up when there’s not enough fresh air circulating.

The culprit? Several sources found in our homes and garages could be suspect: gas-fired appliances, vents, furnaces, fireplaces, chimneys, and our cars.

Here are some facts and tips from the Residential Fire Safety Institute and the U.S. Fire Administration to help protect you and your loved ones from CO poisoning.

Every home needs a CO alarm
The first line of action is to install and routinely test your CO alarm system— the only way to detect this toxic gas. It’s a good idea to place a CO detector on every level and especially near the bedrooms— close enough to hear it when the bedroom doors are closed.

There may be requirements according to where you live. Your local fire department is a good source of information for CO alarm laws.

Who’s at risk for CO poisoning?
Everyone (including our pets) is at risk. But, young children and older folks as well as those with heart or lung problems are particularly vulnerable.

What are the symptoms?
Low levels can cause flu-like symptoms, such as nausea and a headache, as well as shortness of breath. Moderate levels can cause dizziness and light-headedness. High levels of CO can be fatal within minutes of exposure.

CO can be present even though you’re not experiencing any symptoms! So when you hear the alarm, your best bet is to take action regardless of how everyone in your household feels.

What to do if you suspect CO poisoning
As when there’s a fire, if you suspect carbon monoxide poisoning and people/pets aren’t feeling well, it’s best to evacuate your home (leaving the door open for ventilation) and contact the fire department immediately.

Even if you and your family are symptom-free, contact the fire department anyway to be safe. Also, before evacuating, do your best to turn off appliances and open windows to ventilate your home.

Smart preventative measures

• Install CO alarms and test them regularly

• Have a qualified professional check all fuel-burning appliances, furnaces, vents, and chimney systems at least once a year.

• Get the heating and cooking systems and sealed spaces between the garage and the house checked if you’re buying an existing home.

• Don’t use your oven to heat your home or use a charcoal grill or hibachi in your home or garage.

• Don’t keep your car running in the garage— even if the garage doors are open.

For more information on safeguarding your home, check out our Insight Home Fire Safety: Get Alarmed.

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