Basically, a fire extinguisher is a cylinder filled with air or water or some other high-pressure liquid to extinguish a fire. It comes with a release valve that prevents the extinguishing agent from escaping. Depending on the type of fire, there are different types of fire extinguishers.
Water-based fire extinguishers have the most versatility of all, as they can put out most types of fire. In a fire, water has a cool, absorbing effect, so it helps cool the burning material. Another type is the pressurized water extinguisher, which uses air under pressure to direct water into the fire.
The best way to use a fire extinguisher is to target it low and squeeze the handle to release the extinguishing agent. Then, sweep the nozzle back and forth to cover as much of the fire as possible. When you have finished extinguishing the fire, get out of the building immediately.
A clean agent is a good choice for an extinguisher because it is non-conductive and non-corrosive. It can be used on class A, B, or C fires. Most of these types of fire extinguishers are made of sodium bicarbonate, which is similar to baking soda. When mixed with water, these dry chemicals melt and flow, leaving behind carbon dioxide, which helps put out the fire.
The first commercial fire extinguisher came out in the early 1900s. The ABC dry chemical, which was developed in Europe, was introduced to the United States in the 1950s. This extinguisher was more effective than its predecessor, which was carbon tetrachloride. Eventually, a pressurized fire extinguisher was developed by an English inventor, Capt. George Manby, in 1817. Since then, many types have been created.
It is important to regularly inspect and clean your extinguisher to prevent rust, dent, and corrosion. Check the pressure gauge and the pressure of your fire extinguisher. Also, make sure to shake your extinguisher, and check its parts for leaks or rust. Some extinguishers need to be shaken once a month, while others need to be pressure tested every few years.
AFFF fire extinguishers spray a type of foam that starves the fire of oxygen. They are the best choice for liquid fires, but can also be used on solids. The discharge pressure of foam extinguishers is greater than that of pre-mix models, and is more effective against both solids and liquids.
Fire safety experts recommend training people to use a fire extinguisher before an emergency occurs. Some fire departments offer classes for homeowners. The best place to place your fire extinguisher is near the doorway out of the room where the fire is. This will allow you to fight the fire with your back to the door if the flames grow out of control. You should also aim the chemical at the source of the fire so that the flames can be put out.
Different types of fire extinguishers have different types of chemicals that will extinguish different types of fire. Choosing the correct one for your home is a crucial decision that can save your home. Fire extinguishers come in a variety of colours and materials. Before choosing the right type for your home or workplace, check the colour codes of the fire extinguisher.