How do I get my house tested for carbon monoxide?

Author: scraper  |  Last update: Friday, September 4, 2026

Testing for carbon monoxide (CO) in your house requires installing, testing, and maintaining CO detectors, which are the only way to detect this colorless, odorless gas. Install detectors on every level and near sleeping areas, testing them monthly and replacing batteries annually. Professional inspections of fuel-burning appliances are also crucial.

What are two warning signs of carbon monoxide in a house?

It is also a good idea to know the signs of a potential CO problem:

  • Streaks of soot around fuel-burning appliances, or fallen soot in a fireplace.
  • Absence of an upward draft in your chimney.
  • Excess moisture and condensation on windows, walls and cold surfaces.
  • Rusting on flue pipes or appliance jacks.

Is there a way to test if there is carbon monoxide in your house?

Because carbon monoxide (CO) is completely invisible and odorless, the only reliable way to detect it is by installing specialized alarms.

Will the fire department check for carbon monoxide for free?

In most areas, the fire department does not charge to respond to carbon monoxide alarms or to check for the presence of CO in a residence.

Do Kidde smoke alarms detect carbon monoxide?

Yes, but only specific models do. Kidde sells both dedicated smoke-only alarms and dual-sensor combination smoke and carbon monoxide (CO) alarms. Standard smoke alarms will not detect carbon monoxide.

Carbon Monoxide | How To Check For Carbon Monoxide | Hutchinson

What carbon monoxide detector do fire departments recommend?

Fire services, like the International Association of Fire Chiefs (IAFC) and the NFPA, recommend installing a carbon monoxide (CO) alarm on every floor of your home, including the basement, and within 10 feet of every bedroom door. You should choose any CO alarm that bears the mark of a recognized testing laboratory (such as UL).

What does 5 beeps every 30 seconds mean on a carbon monoxide detector?

A pattern of 5 beeps every 30 seconds usually indicates that your carbon monoxide (CO) detector has reached its "End-of-Life". This means the internal sensor has expired and the unit can no longer safely detect CO gas.

What is the silent killer in homes?

Carbon monoxide is called the silent killer. You can't see it or smell it, but it can make you very sick or even be deadly. This November, take simple steps to protect your home and family: Check your CO detectors, inspect appliances, and never use generators or fuel-burning tools indoors.

Do local fire departments give out smoke detectors?

Some fire departments offer reduced-price, or even free, smoke alarms. Contact your local fire department's nonemergency phone number for more information. Your city, county or state may require a specific type of alarm. Please check with your local fire marshal for information on what type of alarm you need.

What can be mistaken for carbon monoxide?

Symptoms of Carbon Monoxide Poisoning

Low levels of CO poisoning can be confused with flu symptoms, food poisoning or other illnesses and can have a long-term health risk if left uncorrected.

How long does it take for carbon monoxide to harm you?

How long carbon monoxide takes to affect you depends entirely on the concentration of the gas in the air and length of exposure. In high concentrations, severe poisoning can occur in under five minutes. In lower concentrations, it may take one to two hours to show symptoms, or even weeks for low-level exposure.

What gas is called the silent killer?

The term "silent killer gas" almost universally refers to Carbon Monoxide (CO). It is a colorless, odorless, and tasteless gas produced by the incomplete burning of fossil fuels (like wood, coal, propane, and gasoline). It is deadly because it replaces oxygen in your bloodstream, preventing vital organs from functioning.

What is one of the earliest symptoms of carbon monoxide poisoning?

One of the most common early symptoms of carbon monoxide (CO) poisoning is a headache, often described as dull or persistent. Because CO is odorless and colorless, these early signs are frequently mistaken for the flu or food poisoning.

What is the most likely source of carbon monoxide in a house?

The primary cause of carbon monoxide (CO) in a home is the incomplete burning of fuel (such as gas, oil, wood, or coal) in malfunctioning, improperly installed, or poorly ventilated household appliances.

How to tell if carbon monoxide is in the air?

Because carbon monoxide (CO) is a colorless, tasteless, and odorless gas, it is impossible to detect with human senses. The only reliable way to know if it is in your air is by using a certified Carbon Monoxide Detector.

Can pets detect carbon monoxide?

No, pets cannot detect carbon monoxide. Because the gas is completely colorless, tasteless, and odorless, neither dogs nor cats can smell it. However, because pets are smaller and have faster metabolisms, they often show severe poisoning symptoms before humans do.

Can you get a carbon monoxide alarm for free?

The fire and rescue services offer advice to help keep you and your home safe from fire and other hazards. They offer a home safety visit to those who need it. A visit includes free home safety advice and equipment. If needed, smoke alarms, and carbon monoxide alarms will be provided.

Does every room in the house have to have a smoke detector?

Smoke alarms should be placed outside each sleeping area and on every level of the home, including the basement. On floors without bedrooms, alarms should be installed in or near living areas such as dens, living rooms, or family rooms.

Can my iPhone test for carbon monoxide?

An iPhone cannot directly detect carbon monoxide (CO) because it lacks the specialized physical hardware required to sample the air for this gas. However, you can use an iPhone to receive remote alerts by pairing it with a smart CO detector or an Apple HomePod.

What is the 8 hours safe exposure limit for carbon monoxide?

The OSHA personal exposure limit (PEL) for CO is 50 parts per million (ppm). OSHA standards prohibit worker exposure to more than 50 parts of CO gas per million parts of air averaged during an 8-hour time period. The 8-hour PEL for CO in maritime operations is also 50 ppm.

What are two warning signs of carbon monoxide leak?

Symptoms of carbon monoxide poisoning

dizziness. feeling sick or being sick. feeling weak. tiredness and confusion.

What supermodel died of carbon monoxide?

Carbon monoxide poisoning is the suspected cause in the death of 76-year-old Dayle Haddon, a Canadian supermodel best known for being the face of the makeup brand L'Oréal. Haddon died Friday at the Solebury Township, Pennsylvania home of her actor son-in-law, Marc Blucas.

What is a mold silent killer?

Hidden mold in your home can have many serious side effects on the health of you and your family. Mold is sometimes referred to as “the silent killer” because it can make people sick without them knowing that it's the cause.

Is carbon monoxide poisoning a slow death?

Symptoms of carbon monoxide poisoning

Without immediate treatment, you can lose consciousness, have a seizure, enter a coma, and potentially die. Death can result from only a few minutes of exposure to higher concentrations or from an hour of exposure to lower levels.

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