Fire extinguishers work by eliminating contributing elements from the fire triangle.

A CO2 fire extinguisher is distinguished by a black strip that runs around the top of the cylinder. This variety of extinguisher works by eliminating two fire triangle elements, heat and oxygen. They are suitable for use on two types of fires, flammable liquids and electrically charged equipment.

CO2 fire extinguishers are created by storing a mixture of liquid and carbon dioxide under pressure. When stored like this, the mixture remains a liquid form. When discharged, the mixture  expands rapidly. It is propelled at high speed as a cold white jet onto the flame. The CO2 works to smother the fire, greatly reducing the oxygen from the source. The cold nature of the matter brings down the temperature of the fire, eliminating the heat element.

The potential downfall of these extinguishers is that the displacement of oxygen from a fire may not be permanent enough to stop the flame re-igniting. This is why they are only suitable for smaller contained flames. The upside with these extinguishers is that they are good for use in the home and office workplace as they do not leave any chemical residue as you get with a dry chemical extinguisher.

Take a moment to watch our trainers demonstrate the use of a range of extinguishers in the below video. Subscribe to our YouTube channel for more compelling how-to videos from our qualified, experienced staff.

Diamond Protection Pty Ltd (Diamond) is a leading provider of security, emergency and training services. Established in 1995, this Australian owned and operated company is committed to leading the way – to be the standard of excellence. Diamond operates an internationally certified Integrated Management System (IMS) incorporating ISO accreditation for Quality (ISO 9001:2008), Occupational Health & Safety (AS/NZS 4801 & OHSAS18001:2007) and Environmental Management (ISO 14001:2004) Systems. The company has placed significant importance in continual improvement and commitment to the community and environment.

Diamond works closely with clients throughout Australia and beyond to provide security audits, security guards / officers, patrols, risk management, emergency service officers, safety officers, life support and nationally recognised training courses in partnership with Australian government and private Registered Training Organisations.

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