Pulse Oximeters: Answering Your Frequently Asked Questions

Pulse oximeter is the most useful and talked about product currently. It came into light when the world got hit by the COVID-19 pandemic. Today, pulse oximeters have become a household item. Here, we’ll guide you through some of the most frequently asked questions around pulse oximeters.

What is a pulse oximeter?

A pulse oximeter is a small, lightweight, and portable device that quickly and easily measures oxygen saturation in the arterial blood non-invasively.

How to use a pulse oximeter?

Turn on the device. Open the clamp like device and place the right hand middle finger inside the device. A display is attached to the top of the device which shows the results for each reading. Wait for 5-10 seconds till the readings are stable. We recommend taking out the batteries when the product is not in use to ensure that there is no battery drain.

What does a pulse oximeter reading mean?

The normal oxygen saturation readings should show between 95% – 100% (SpO2). If the readings display below 92% (SpO2), you should immediately consult a doctor.

You need to be extra careful these days as a drop in oxygen levels may be a symptom of COVID-19 too.

What is the cost of a pulse oximeter?

The cost of the pulse oximeter can vary depending on its model and functionality. There are various types of Pulse Oximeters. You can check here

What is the Perfusion Index (PI) in a pulse oximeter?

In BPL Pulse Oximeters, there is an index called PI. Perfusion Index is a measure for physicians to check if a sensor site has good pulse strength. There’s not much for you to do, But for your information, PI is expressed as a percent ranging from 0.02% to 20%. Normal PI may vary from person to person depending on various factors. Consult a medical professional to understand what this level means for you.

How accurate is a pulse oximeter?

Pulse Oxygen levels can vary under different circumstances. BPL Pulse Oximeter is equipped with a four-direction display that shows results with a ±2% accuracy.

Can a pulse oximeter identify COVID-19 infection?

A pulse oximeter plays a very crucial role in detecting COVID-19 symptoms. If a person gets infected from coronavirus, there are some symptoms that should start reflecting. But as the cases are on the rise, doctors have observed that even patients who might not show symptoms of breathing issues would show a low reading on a pulse oximeter. This condition is called silent hypoxia. A pulse oximeter can help in regular monitoring of the oxygen levels.

Which finger to use in a pulse oximeter?

As per the studies, your right hand’s middle finger shows the best results. Make sure to take off any nail polish and avoid using on cold fingers as the readings may not show correctly.

Which is the best pulse oximeter to buy?

If you’re looking to buy a pulse oximeter, BPL SmartOxy is one of the best ones in the market that gives you accurate results. It is equipped with a color OLED display that shows bigger fonts and better readability for people of all age groups. It also comes with an easy to carry pouch for your comfort. So make a smart decision, buy now on Amazon

Why keep a pulse oximeter at home?

Using a pulse oximeter can help you keep a check on the levels of oxygen saturation in your blood. Thus we all should keep the device at home and monitor regularly. If your readings are below the recommended level, seek immediate medical help.

We hope that this post has helped answer your queries. If you still have any questions, please write to us at sales.medical@bpl.in or message us on Facebook, LinkedIn, and Instagram.


  • My pulse oximeter only sends a message which says finger out.

    By Paul Harrison

  • I find your information really easy to understand. And that’s a big help

    By Perry Degonia

  • Buy Best Oximeter in USA Santamedical offers the Best Oximeter in USA. The company has been into producing the best quality Blood Saturation Monitors and other medical devices for years. Fingertip Pulse Oximeter is an important device used to measure a person's heart rate and blood oxygen level, both of which are important signs of health. Website - https://santamedical.com/collections/oximeters

    By Farukh Khan

  • How Are You This text is worth everyone's attention. Where can I find out more? https://cutt.ly/rMR5jOG Best Regards

    By Launa Bibb

  • What does it mean when the heart flashing red when checking your oxygen level

    By LillianGibson

  • RichardlAr

    By RichardlAr

  • My pulse oximeter is showing oxygen level in red even at 99. What does this mean?

    By Pramilla

  • Tarun - You did not hold your Breath long enough. I did the same thing after 2 min until I was about to pass out , it started drop. In your case do the same and hold your breath until you pass out. Then immediately check your finger. For best result use your right middle finger for the oximeter and place your left middle in you anus for the best temperature reading.

    By Cavio Mas

  • I have been working with this company bpo solution in NJ and USA They have an aggressive approach with low cost and maximum lead generations as well.

    By Peter Parker

  • My oximeter is not starting on pressing the button. Not even after changing batteries. I purchased it in June 21, and rarely used. Yesterday it was working fine, today stopped working without any cause.

    By Vinay Bansal

  • Reading in pulse oxymeter is showing 99% but colour is red, what does it mean?

    By Moinak Bose

  • Thank you so much for sharing a wonderful information with us. It was really nice to read a article written in this kind of topic. This article is extremely helpful exceptionally fascinating subject I am looking for that. You talk about the using system of pulse oximeter and how it's works.You also describe about it's function and everything we need to know. Your article is very much important for our day to day life who exactly need pulse oximeter. You also talk about other formats of pulse oximeter and it's pricing.So I think people can find your post very useful.

    By Pinzira

  • useful information about pulse oximeters tnx for your post.

    By Aakash Kapoor

  • I purchased BPL SmartOxy meter, there oxygen level is showing always 97-100, even when i am holding my breath then level is not going down. Also pulse shape is not perfect traingle.

    By Tarun Goel

  • 836618717

    By Renette Van Der Merwe

  • Very informative

    By Balwantsingh

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