tag:blogger.com,1999:blog-7877849.post8488739762551788743..comments2024-03-28T02:11:54.900+10:00Comments on GUN WATCH: FL: Airgun Fatality, Aggravated by Lack of Carejonjayrayhttp://www.blogger.com/profile/13363092874281160320noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-7877849.post-71458446511249134822022-09-07T04:27:36.366+10:002022-09-07T04:27:36.366+10:00 In my working days, been retired for over 20 year... In my working days, been retired for over 20 years. I managed a lot of chest tube cases. They have to get the hole in the lungs closed and then evacuate the air in the chest cavity for the lung to re-expand the air we breath at sea level is right at 21% oxygen and 79% Nitrogen. Nitrogen is what keeps the lungs inflated while the oxygen is being absorbed. We exhale the CO2 our body creates, Oxygen in CO2 out and the nitrogen makes everything stay open At the same time the Oxygen goes in the CO2 comes out The oxygen passes through the alveolar capillary membrane in to the blood stream and the CO2 comes out of the blood and is the air we exhale. We normally only use about 8% of the oxygen we breath in with each breath and the CO2 makes up the difference in volume when we exhale. We use Oxygen Plants use CO2 That is the balance of nature.Anonymousnoreply@blogger.com