Blood oxygen devices that do not meet UK legal standards have been sold on the web, an investigation has found. Amazon and eBay are among the big online retailers who sold the ‘unfit’ machines.
The devices, called pulse oximeters, measure blood oxygen levels and are known to detect silent hypoxia. This is where oxygen levels plummet to dangerously low levels.
As this was a condition associated with Covid-19, sales of blood oxygen devices spiked during the pandemic. As reported in The Times, an investigation carried out by Which? studied oximeters retailing from as little as 99p available from eBay, Amazon and Wish.
