The oximeter is showing reading for my mom, sister, and me, but it's not showing any readings for my dad. Is it the machine's fault? - Quora
Pulse oximeters are less accurate for Black patients, study finds : Shots - Health News : NPR
Pulse Oximeter: Purpose, Usage, and Readings
Should you buy a pulse oximeter?
Amazon.com: LPOW Fingertip Pulse Oximeter, Blood Oxygen Saturation Monitor ( SpO2) with Pulse Rate, Perfusion Index with Alarm, OLED Display, Batteries and Lanyard Included : Health & Household
Does Your Pulse Oximeter Mean What It Says? - MHOxygen
Pulse Oximeter: How to use a Pulse Oximeter? A Step-by-Step guide | - Times of India
Pulse Oximetry – 3 Important Points to Understand Usage and Interpretation