Choosing Best Pulse Oximeter for Asthma: Why It Is Important?

The blood oxygen level in the body (or oxygen saturation levels) measures how much oxygen is present in the red blood cells.

Studies show that maintaining a precise balance of oxygen-saturated blood is crucial for good health.

And this process of balancing is automated by your body in most cases.

However, in patients suffering from health conditions such as chronic respiratory problems, asthma, COPD, heart disease, etc., the balancing of oxygen saturation levels in the blood gets altered.

Thus the levels of oxygen saturation in such conditions need to be monitored regularly for avoiding any serious problems.

Hypoxemia (blood oxygen levels below normal) is a condition of concern for most patients.

In case you are suffering from severe lung conditions, you need to know about the normal oxygen levels that are right for you.

Also, you must maintain the same to avoid any severe consequences.

What Is A Pulse Oximeter?

Pulse oximetry is a non-invasive method by which a person’s oxygen saturation (SO2) can be monitored easily.

The small portable device which is used to detect rapid changes in your blood oxygen level is called a pulse oximeter.

In most cases, a Pulse Oximeter is used to measure two different things, namely:

  • Heart rate
  • Oxygen saturation in the blood

With Pulse Oximeter, getting count or details about heart rate is pretty straightforward. It works by picking the lub-dub of the heart and then translating this count on a display screen.

Reading an oxygen saturation level in your blood with Pulse Oximeter is the method of finding the percentage of hemoglobin molecules in arterial blood.

This is the level of blood that then saturates with oxygen.

You can shine a light through your finger, which then helps calculate the oxygen level with the help of a sensor attached to the Pulse Oximeter.

How Does It Work?

Pulse Oximeter works using a straightforward principle, wherein it considers the method by which absorption of red and infrared lights occurs.

This absorption is characterized by oxygenated and deoxygenated hemoglobin in the human body.

In the case of oxygenated hemoglobin, it shall absorb infrared and allow red light to pass through. In contrast, in the case of deoxygenated hemoglobin, then you could see absorption of more red light and allow infrared to pass through.

Pulse Oximeter Types

While oximetry is a diagnostic procedure, the most common kinds of pulse oximetry devices used currently are as follows:

1- Finger Pulse Oximeter – This is the most commonly used device as it’s portable and easy to understand and calculate hemoglobin levels.

It works so easily that you can use it on your own without any additional help.

Mostly it comes in the shape of an alligator and can be inserted/clipped to your finger or ear lobe.

There is a screen on the clip that reads the oxygen level and differentiates between oxygenated and deoxygenated blood.

One main disadvantage of using this type of Pulse Oximeter is that it may not always provide you with ideal or actual reading in case there are blood clots or if your hand is cold while trying the test.

2- Handheld Oximeter – Medical institutes and hospitals mainly use this type of Oximeter to read the vital signs of a human being.

This is a slightly better and more sophisticated reading design and does not have a reading screen attached to the machine.

There is a cable attached that reads the sign and then shows the result on another screen.

A doctor can better understand your body with this machine as it gets more details about your pulse and blood levels.

3- Fetal Pulse – This Oximeter is used for babies to know whether the child is healthy.

However, this kind of practice is not advised on newborn babies as, in such cases, it is not always possible to get accurate readings, and the passage of light could seriously damage them.

How Does Pulse Oximeter for Asthma Help?

The most common misconception that usually gets into patients’ minds is that oxygen saturation shows a dip while you are affected with asthma.

However, the fact is, this is not always the case, and an ideal way to ensure this is by measuring your oxygen saturation levels.

The best possible method to do so is by using a Pulse Oximeter.

As per recent research, it was pointed out that most asthma patients use a pulse Oximeter in their home to get their oxygen saturation levels tested on their own.

This is best done to ensure that they keep a tab on oxygen saturation levels and take appropriate treatment before the situation gets out of control due to acute asthma problems.

5 Best Pulse Oximeter For Asthma Reviews

Many of us would have come across a Pulse Oximeter as either a stick or a clip that can be attached to a vital machine.

These days we even have a portable Pulse Oximeter that you can carry along while you travel.

Buying a Pulse Oximeter is not always an easy task. Every individual is different, and hence a careful decision needs to be made before buying a pulse Oximeter.

Here we list down some of the best options for you to buy. Do check them out and pick one that suits you best.

1- Concord Sapphire Fingertip Pulse Oximeter

Designed for personal use to check the betterment of the oxygen levels in the blood, Concord Sapphire fingertip pulse oximeter is a trusted brand that offers accurate results.

For convenient and easy monitoring of blood oxygen, this is the best pulse oximeter device on the market to buy.

The Concord Sapphire oximeter device has a large bright red LED display that lets you read in the dark or bright light. It requires AAA batteries that run 30 hours straight.

The device shuts off automatically after 8 seconds to avoid unnecessary battery drain. Furthermore, it indicates ahead of time when the batteries are low and require changing.


  • It is an accurate, quick, and user-friendly device that shows your blood oxygen levels, pulse strength, and pulse rate.
  • The device comes packed with a carrying case, batteries, and a shock-resistant cover in a custom foam-padded box.
  • It is suggested for adults as well as pediatrics (kids for more than 7 years) to use
  • The device comes with a 2-year warranty

2- Finger Pulse Oximeter by Vive Precision

If you are looking for a value-for-money Oximeter device for at-home fitness testing, Finger Pulse Oximeter by Vive Precision gives you 100% accurate results.

Individuals suffering from cardiopulmonary conditions, asthma, emphysema as well as heart conditions can rely on this Finger Pulse Oximeter to measure their blood SpO2 levels on their own, in between lab visits.

The device also comes equipped with a feature that taps an irregular heartbeat and low oxygen saturation level alarm, ensuring you are never left thinking that everything is alright.


  • This oximeter from the VIVE brand is FDA approved.
  • Easy to use; all you need to do is simply turn on the device, clip it on your finger, and have your blood oxygen and pulse rate checked.
  • Portability is never an issue; it includes a belt clip case and necklace/lanyard in the package.
  • It has a vibrant, multi-angle display with a black background and a large bright blue readout
  • The device comes with a 2-year warranty

3- iHealth Air Wireless Fingertip Pulse Oximeter

Activity trackers aren’t helpful when it comes to measuring fitness. They measure exercise results.

If you are looking for detailed health-related findings, you require a dedicated device.

iHealth fingertip pulse Oximeter lets you check the oxygen levels in your blood and keeps track of your pulse strength and perfusion index.

The device is handy and user-friendly to use. All you have to do is slip your finger inside and start the device; it shows the results in a neat display.

If you wish to record the data, it simultaneously tracks those results with iHealth’s free mobile health app.


  • The device measures about 7.3 x 4.5 x 6.1 inches and weighs 4.8 ounces
  • Accurately measure your blood oxygen level, pulse rate, and perfusion index
  • It is clinically tested and HIPAA compliant.
  • Wireless and lightweight, the pulse oximeter can be worn during the activities
  • Easy to clip on your finger for a reading, anytime, anywhere

4- TEC.BEAN Updated Fingertip Pulse Oximeter

The way medical technology advances have made it possible to have health checkups done affordably at home.

TEC. Bean oximeter is one such accurate, professionally designed oximeter device that helps to keep track of pulse rate and oxygen levels in the blood.

It is a newly upgraded, FDA-approved device that measures your pulse and oxygen levels quickly.


  • The device comes equipped with an auditory beep which makes an audible sound noise for every detected pulse
  • The auditory alarm warns you when your SpO2 and pulse rate are not as per the set limits.
  • The device has a bright double-color OLED display that shows you accurate data any time, anywhere you need.
  • The unit is extremely light in weight and easy to carry, accommodating a range of finger sizes
  • The display can be accustomed in 4 different directions; moreover; it shows 6 display modes show real-time oxygen levels, pulse rate, and pulse rate bar
  • The device is handy for sports enthusiastic

5- AccuMed CMS-50D1 Finger Pulse Oximeter

The AccuMed Pulse Oximeter offers accuracy, speed, and ease of use, all at affordable prices.

The device efficiently reads accurate oxygen saturation and pulse rate in one device.

This AccuMed Pulse Oximeter unit can fit all finger sizes from kids above 5 years old to adults, as it measures the oxygen level in the blood and reads the pulse rate within 10 seconds.

To get accurate measurements, it is essential to put it in a stationary position and not while in motion for precise readings.


  • The unit automatically shuts down, helping to conserve the battery life when the user’s finger has been removed for more than 5 seconds.
  • It comes with AAA batteries that give straight 24 hours of continuous operating time.
  • You can view/read your SpO2 and Pulse Rate through a bright LED display
  • The LED display cover prevents ambient light washout, making readings crisp and clear.
  • The unit is FDA approved
  • It comes with a 1-year warranty

Factors to Consider When Buying A Pulse Oximeter

As seen above, a pulse oximeter is one of the most essential devices for asthma and COPD patients. However, you should check for some important things while buying one online.

Accuracy at which a device works is of the utmost importance when it comes to pulse Oximeter. At any point, the device should be able to provide you with 70% accuracy of the oxygen saturation level.

Other key vital factors to look at include – portability, lightweight, durability, and visible or perfect display that activates automatically when needed.

Do not forget to check for various manufacturers online and check for their user reviews.