A pulse oximeter is a small device that fits on your finger and quickly and easily checks your oxygen levels and heart rate. A pulse oximeter can be used to help monitor a range of conditions in hospital or at home, including COVID-19 infection.
This video will explain how to use a pulse oximeter, what the numbers mean and when you should seek medical advice.
Click the image below to view the video: 
(Health Navigator NZ and Aotearoa Collaborative, NZ, 2021)
You can also:
- watch this video directly on Youtube.
- read more about pulse oximeters.