CO2 System Signs, WARNING Carbon dioxide gas can cause injury or death. When alarm operates, do not enter until ventilated.

This label/sign reads "WARNING Carbon dioxide gas can cause injury or death. When alarm operates, do not enter until ventilated." This sign should be posted outside each entrance to a carbon dioxide storage room.

CO₂ system signs are available in 6 different versions, each of which is available in 4 different materials - high performance self-adhesive polyester, plastic, aluminum, or premium fiberglass in sizes from 3.5" x 5" to 10" x 14".