What type of fire extinguishing agents are no longer manufactured due to environmental regulations?

Halons are fire extinguishing agents that have been phased out of production due to their detrimental impact on the ozone layer. These chemicals, once widely used in firefighting, particularly in aviation and other critical applications, were recognized for their effectiveness in suppressing fires quickly and efficiently. However, studies revealed that halons contribute to ozone depletion, leading to their classification as substances that harm the environment.

In response to environmental concerns, international agreements like the Montreal Protocol have restricted the use and manufacture of halons, prompting the development and adoption of alternative fire extinguishing agents that are less harmful to the atmosphere. The replacement agents often include foams, powders, and other systems that do not possess the same environmental risks as halons.