How does pulse Oximeter work? | Tech Baba

How does pulse Oximeter Measure oxygen?

From the past two years one of the medical healthcare devices that have been most in use or say in demand throughout the world, would be a Pulse Oximeter. It had played a crucial role in helping people keep an eye on their Oxygen saturation level or as we know it SpO2. In this video, we have tried our best to cover basic questions that relate to a Pulse Oximeter like
What is a Pulse Oximeter?
How does a Pulse Oximeter work?
What's the purpose of using a Pulse Oximeter?