Fast, durable colorimetric breath indicators for visualization of exhaled CO2 to assist in verifying proper intubation. StatCO2® (for patients over 15 kgs), Mini StatCO2® (for patients within 1 – 15 kgs) and Neo-StatCO2® (for patients within 0.25 kg – 6 kgs) are designed to connect between an endotracheal tube and a breathing device. The patient\’s exhalation gas is led through the indicator to detect approximate ranges of end tidal CO2 by color comparison assisting in the verification of proper tube placement. StatCO2® and Mini StatCO2® have pull tabs to activate device, the Neo-StatCO2 ® does not have a pull tab.