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Air quality index and sensitive groups.

Air Quality Index ( A Q I ) is a measure of the quality of air in a given area . It is used to measure the concentra...

Chandana Gihan Perera 8 Dec, 2022

Does 4 7 8 breathing work?

4 7 8 breathing technique also known as the relaxing breath was well known for in its effectiveness of instantly calming anxiety of the pr...

Chandana Gihan Perera 19 Sep, 2021

What causes false pulse oximeter readings

What causes false pulse oximeter readings ? Pulse oximeters show limitations and accuracy issues under certain conditions.  Skin complexio...

Chandana Gihan Perera 17 Sep, 2021