CAW National Council 4000
Occupational Health and Safety

Hazardous Substances:  Carbon Dioxide

Carbon dioxide can create ill-health effects if inhaled. Solid carbon dioxide (dry ice) and compressed carbon dioxide gas from a
cylinder can affect the body if it comes in contact with the eyes, skin, or mouth.


Inhaling carbon dioxide may cause rapid breathing, rapid beating of the heart, headache, sweating, shortness of breath, dizziness,
mental depression, visual disturbances, shaking, asphyxiation, unconsciousness and death. Skin, eye, or mouth contact with solid
carbon dioxide (dry ice) may cause frostbite. Similar effects may occur from carbon dioxide as it is being released from a cylinder.


  • Enclose process
  • Local exhaust ventilation
  • General dilution ventilation
  • Personal protection equipment


ACGIH TLV 5,000 ppm (9,000 mg/m3)

Source:  CAW Health, Safety & Environment Department