What are the signs of C02 poisining?

Signs of carbon dioxide (CO2) poisoning can include headache, dizziness, confusion, shortness of breath, and increased heart rate. As levels rise, symptoms may progress to nausea, loss of consciousness, and even asphyxiation. In severe cases, it can lead to permanent injury or death. It's crucial to ensure proper ventilation in enclosed spaces to prevent CO2 buildup.