Quote:
Health
Effects:
Inhalation: May cause suffocation by displacing the oxygen in the air. Exposure to oxygen-deficient atmospheres may cause dizziness, nausea, vomiting, diminished mental alertness, loss of consciousness, and death. It should be recognized that collapse and asphyxiation may occur without experiencing any of the above symptoms. Prolonged breathing of very cold atmospheres can cause lung damage and hypothermia.
Skin: Frozen tissues, caused by frostbite are painless and appear waxy with a possible yellow color. They will become swollen, painful, and prone to infection when thawed.