DO YOU KNOW HOW MUCH WE BREATH PER DAY?   IF YOU DON'T KNOW LEARN HERE.
WHEN WE INHALE  AND EXHALE  WE DO AT AN AVERAGE OF 15 BREATH PER MINUTE. FROM THIS WE CAN CALCULATE FOR ONE HOUR AND FOR 24 HOURS.  IT WILL BE EQUAL TO 21,600 PER DAY.
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