This document provides information about fire extinguishers for a construction safety talk. It discusses the different types of fire extinguishers and the types of fires they should be used on. Water extinguishers are for Class A fires involving solid materials but not liquids or electricity. Carbon dioxide and dry chemical extinguishers can be used for multiple fire types by cutting off the air supply. The document also recommends demonstrating how to properly use an extinguisher using the PASS method of pulling the pin, aiming at the base of the fire, squeezing the trigger, and sweeping from side to side. Attendees are encouraged to identify the extinguishers in their work area and how to contact the fire department.