What type of contents do extinguishers with a zone of the color RED contain?

Extinguishers marked with a zone of the color red specifically contain water. This color coding is part of a standardized system that helps users quickly identify the type of extinguishing agent contained within the extinguisher. Water extinguishers are commonly used for Class A fires, which involve ordinary combustible materials like wood, paper, and textiles. The red labeling helps ensure that in an emergency situation, individuals are able to easily find and utilize the correct type of extinguisher to combat the fire effectively and safely.

The other types of extinguishers, such as foam, dry powder, and CO2, are designated by different colors—cream, blue, and black, respectively—allowing users to differentiate between the types of extinguishing agents and their appropriate applications for various fire classifications.