Question 236Safety & Environmental - QMED

The correct answer is C) an oxygen deficiency in a space. An oxygen indicator is designed to detect low levels of oxygen in a space, which can indicate an oxygen-deficient atmosphere. This is important for ensuring the safety of personnel working in enclosed or confined spaces, as a lack of oxygen can pose a serious health risk. The other options are incorrect because an oxygen indicator is not designed to detect the presence of carbon monoxide (option A) or concentrations of explosive gas (option B), which would require different types of gas detection equipment.