99
Pulse oximeter devices routinely overestimate blood oxygen levels in Black patients
(news.stanford.edu)
this post was submitted on 29 May 2026
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No, the point is that they're calibrated for the people who they were tested on/made by and that the vast majority of the population isn't going to pay extra for a feature they are never going to need. It's not like the $20 finger clip you got at CVS is a piece of lab equipment that's being regularly recertified by an expert. As long as it says something over ~97% most people are happy and move on with their day.