What are the symptoms of a slow carbon monoxide leak?

A slow, low-level carbon monoxide leak in a residential home produces subtle, flu-like symptoms that often go unnoticed or misdiagnosed because the gas is entirely invisible, odorless, and tasteless. Common symptoms include chronic dull headaches, dizziness, weakness, fatigue, nausea, vomiting, chest pain, and confusion. A key indicator that symptoms are caused by a slow CO leak is that family members often feel better or notice symptoms disappearing when they leave the house for work or school, only to return when they re-enter the home. You can troubleshoot health risks safely by evacuating immediately if poisoning is suspected. You can verify that your corrective action is successful when seeking immediate medical evaluation at an emergency room and having utility technicians inspect heating appliances ensures safe air quality.