These are cylinders that can easily be lifted and used to put off fire before it becomes massive. They are usually strategically positioned near exits to ensure users have high chances of escaping incase fire escalates beyond what the extinguisher can put off. They come in different varieties and each is used depending on the class of fire. They include water, ABC dry powder, carbon dioxide, foam and wet chemical. They usually come in red cylinders that distinguish them from any other cylinder with each type having a different colour code displayed on the cylinder for easy identification.