Hypercapnia

Main symptoms of Carbon dioxide toxicity, by increasing volume percent in air.[2][3]

Hypercapnia, also known as CO2 retention, hypercapnea, and hypercarbia, is a condition of abnormally elevated carbon dioxide (CO₂) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.

单词	Carbon dioxide narcosis
释义	Carbon dioxide narcosis 英语百科 Hypercapnia Hypercapnia, also known as CO2 retention, hypercapnea, and hypercarbia, is a condition of abnormally elevated carbon dioxide (CO₂) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.
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Carbon dioxide narcosis

Hypercapnia