Covid: How a £20 gadget could save lives January 21, 2021 at 05:11AMhttps://https://ift.tt/3qKBqnH Doctors say people should buy a pulse oximeter to monitor their oxygen levels at home.

Doctors say people should buy a pulse oximeter to monitor their oxygen levels at home.

from BBC News - World https://ift.tt/3c0FvA6