Can inhaling carbon dioxide cause poisoning?

Under normal circumstances, whether inhaling carbon dioxide causes poisoning depends on its concentration in the environment. In daily life, the concentration of carbon dioxide in the air is low, and normal inhalation does not lead to poisoning. However, excessive inhalation in enclosed spaces or high-concentration environments may cause poisoning. A detailed analysis is as follows:

In everyday environments, carbon dioxide concentrations remain at low levels, allowing the human body to normally metabolize and expel it after inhalation. Breathing remains unobstructed, no discomfort occurs, and there is no need to worry about poisoning. Exposure to carbon dioxide during regular daily activities and work falls within a safe range.

When in confined spaces such as cellars or sealed warehouses, or when exposed to high concentrations of carbon dioxide from industrial emissions, excessive inhalation can lead to insufficient oxygen supply in the body. Symptoms may include dizziness, chest tightness, and rapid breathing. In severe cases, confusion may occur. Immediate transfer to a well-ventilated area is necessary, along with loosening clothing like collars to maintain unobstructed breathing.

Before entering any enclosed space, ensure ventilation systems or windows and doors are opened to allow air exchange. When performing related tasks, take proper protective measures and carry a portable gas detector. If discomfort occurs, quickly leave the hazardous environment, breathe fresh air, and consume foods rich in vitamins to enhance the body's tolerance.