Since the reading of pulse oximeter is fairly accurate, it may seem smart to keep the device handy in the following situations:
1. If you are suffering from any respiratory medical conditions like asthma, bronchitis etc
2. You have come in contact with a suspected coronavirus patient
3. You belong to the high-risk category for COVID-19 including high blood pressure, diabetes and other chronic lung and heart conditions
4. You are a frontline COVID worker
5. You have developed minor symptoms like unexplained fatigue and mild fever