Why a Pulse Oximeter is an Important COVID-19 Tool Blog Introduction: A Pulse Oximeter is a small, portable device that measures how much oxygen your blood is carrying. It's used to check for conditions such as heart failure, sleep apnea, and asthma. It can also be used to monitor your oxygen levels if you have COPD or another chronic lung condition. In the current COVID-19 pandemic, a Pulse Oximeter can be used to check your oxygen levels if you think you might have the virus. If your oxygen levels are low, it could be a sign that the virus is affecting your lungs and you need to seek medical attention. A Pulse Oximeter is easy to use. You just need to clip it onto your finger and wait for a few seconds while it takes a reading. The results will be displayed on a small screen. How Does a Pulse Oximeter Work? A Pulse Oximeter works by shining a light through your skin to measure how much oxygen is being carried in your blood. The device contains two sensors: one that emi...