Plain answers to the questions we hear most.

You may, if someone else was responsible for the source (a landlord, hotel, employer, contractor or manufacturer) and you were harmed. The free review helps you find out in about five minutes.

If the equipment was your own and nobody else installed, serviced or made it badly, there may be no one to claim against. But a manufacturer or installer is often involved somewhere, so it’s worth asking.

Yes. Repeated exposure over weeks or months can cause lasting harm, and it is a common basis for claims, especially in rented homes.

Usually, yes. Parents and guardians can act for children, and families or estates can bring claims after a death.

Medical records, a carboxyhemoglobin (COHb) blood test, alarm readings, fire department or utility reports and inspection findings all help. We explain what to collect and keep.

No. COHb falls quickly once you breathe fresh air or oxygen, so a test taken hours later can look normal. Symptoms and the circumstances matter too.

Delayed effects on memory, concentration and mood are well documented. A late diagnosis does not rule out a claim.

Time limits depend on your state and the type of case, and some are as short as one year. Start the review as soon as you can so the deadline can be checked.

Nothing. The review is free and confidential, with no obligation to go ahead. Partner attorneys usually work on a contingency basis, which they will explain before you agree to anything.

No. Carbon Monoxide Kills is a specialist information and referral service. We connect people with experienced partner attorneys and medical experts.

Yes. Your details are only shared with a partner attorney with your permission.