*BLACK ALERT*
Most of the pulse oximeters sold online (especially the cheapest and most popular) are made IN CHINA.
If you are using one of these, do not trust the results - have received multiple first hand sources from frontline workers about their inaccuracy.
The new strain is actually DEADLY - am in London and people are dropping, literally overnight like flies.
If you can, GET a bloody vaccine, or if you don't want one, then get a PROPER sats monitor.
NO COINCIDENCES.