Wellue FS20F Bluetooth Pulse Oximeter

Works great been using it daily for about a month still has over half battery it’s also very accurate
I compare when at the hospital

took it to doctors appointment with me to have them check it out and its not as accurate as claimed or with as small a margin of error but my doctor said its better than not having one. dont completely trust it. stayed 4-16% off for spo2 and was about 10 bpm slower.

it’s better than using 2 fingers and math, and gives you a vague idea of oxygen level.

Love how the readings are connected to your phone, so you can have a history of your oxygen and / or pulse rate.

I have sleep apnea. A sleep test will cost on the order of $250 each. One of the most important pieces of data a sleep study tests for are your levels of blood oxygen (SpO2). I used this pulse oximeter, along with the free app I downloaded on phone to graph my blood oxygen while sleeping. I discovered what no pulmonologist ever told me. My sleep apnea is NOT caused by any blockage in my throat from the tongue pushing back during sleep. Which is the most common cause of sleep apnea, and the default answer of many doctors. Rather, I discovered my sleep apnea is caused by “shallow breathing”.

See I also have inflamed vocal cords called Vocal Cord Dysfunction bought on by acid reflux. Since air has to pass through the vocal cords, the difficulty becomes greater while sleeping. I figured this out by experimenting with different sleep apnea hardware, then taking an overnight pulse oximeter test. I found it odd that wearing mouth guards with tongue depressors (keep tongue from falling back) did not help my SpO2 reading much at all. It was still below 90 pct for up to 30 minutes a night. Ideally you want all your sleep time above 90pct. Also, my overnight sleep apnea test from clinic, and snore noise test revealed I had very little snoring which indicates the tongue is likely not blocking the airway. The CPAP machine never worked for me because my inflamed vocal cords caused pushback from the airflow and I would wake up in the morning feeling nauseous. Plus, CPAP machines are just hard to get used to-period.

I found a study on oxygen concentrators that made me want to give those a try. These machines give you a flow of concentrated oxygen. The amount of airflow is very mild and not even noticeable. I tried different settings, and for me I like 2 liters per minute(note average person breathes 7 liters a minute). At the 2 liter setting I am getting 75pct oxygen (compared to 21pct oxygen that normal room air has). In oxygen therapy more airflow is not necessarily better.

This oxygen rich therapy while using a nose cannula, along with wearing a chinstrap to keep my mouth closed so I breathe in and out my nose only at night, to ensure I was getting the oxygen therapy. My sleep readings now are like a straight line graph of 95 pct SpO2. I never achieved this level, ever! All night it only dipped to below 90pct for 2 seconds which is well within a normal range.

Hope this helps.