Keep away from children. Dry ice expands as it changes from a solid to a gas. Do not keep in stoppered or tightly closed containers. Store in a safe place away from people. Be sure storage area has adequate ventilation.
Dry ice is the solid form of carbon dioxide.
Carbon dioxide is 1.5 times as heavy as air and can collect in low lying areas. Carbon dioxide can cause asphyxiation due to lack of oxygen, and in sufficient concentrations is toxic. Never lay down in dry ice fog or any other fog. Always provide adequate ventilation to low lying areas such as basements, trap rooms, and orchestra pits. Provide adequate ventilation in automobiles during transport.