Feel the lungs expand beyond what they have in a long time.
After my dad finished checking himself with a finger O2 meter I had him take a few inhalations of this then started the machine again, was able to verify a 6 point increase in his oxygen levels.
Chris Wetzel (verified owner) –
Feel the lungs expand beyond what they have in a long time.
After my dad finished checking himself with a finger O2 meter I had him take a few inhalations of this then started the machine again, was able to verify a 6 point increase in his oxygen levels.