A family of 4 (ages 46, 5, 15 and 17) presented to the Emergency Department for an “unknown gas leak” at their apartment complex. EMS reported 2 elderly patients who were reported dead in their apartment. The patients presented with flu-like symptoms as well as a headache. In the ED, 2 of the 4 were febrile and 3 of the 4 patients were tachycardic but all had normal oxygen saturations on room air without evidence of respiratory distress.