Man Gives Drowning Puppy CPR | This drowning puppy wasn't even moving — and the guy who found him had to think fast to bring him back to life.
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backdraft (Site Moderator)
Awww that was good.
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Fraggot (Short Spike)
Don't humans breathe out CO2?
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eh (Long Spike)
Inhaled air contains about 21% oxygen. Exhaled air has about 16% oxygen. So there is less oxygen in exhaled air obviously but still some to help another breathing animal especially when the oxygen is forced into their lungs.
Inhaled air is about 0.04% CO2 while exhaled air is 4% CO2 as the body uses respiration to rid itself of it.
Comments
(Site Moderator)
Awww that was good.
(Short Spike)
Don't humans breathe out CO2?
(Long Spike)
Inhaled air contains about 21% oxygen. Exhaled air has about 16% oxygen. So there is less oxygen in exhaled air obviously but still some to help another breathing animal especially when the oxygen is forced into their lungs.
Inhaled air is about 0.04% CO2 while exhaled air is 4% CO2 as the body uses respiration to rid itself of it.