The Ethos 4470 Air Quality C02 Carbon Dioxide Monitor is a must-have for those concerned about the quality of the air they breathe. This monitor is designed to detect the presence of carbon dioxide and other harmful airborne chemicals. It is perfect for use in various industries, including business, office, and industrial settings. The monitor is made by a trusted brand and is highly reliable. It is easy to use and provides accurate readings every time. This product is ideal for those looking to protect their health and well-being while working in environments with potentially harmful air quality.