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A fire blanket is used to smother small, early-stage fires by cutting off the oxygen that supports combustion. It is most commonly used for cooking fires, especially small fires involving pans, cooking oil, or grease. A sufficiently large fire blanket may also help extinguish flames on a person’s clothing.
Fire blankets are simple, compact, and require no complicated operating mechanism. This makes them a practical addition to homes, restaurants, hotels, offices, laboratories, workshops, and other locations where small fires may occur.
However, a fire blanket is intended only for a fire that is small, contained, and safe to approach. It should never delay evacuation or an emergency call when a fire is spreading or producing heavy smoke.
A fire needs heat, fuel, and oxygen to continue burning. These three elements are commonly known as the fire triangle.
A fire blanket works by covering the burning material and restricting its oxygen supply. When the blanket is placed correctly over a small fire, it creates a barrier between the flames and the surrounding air. Without enough oxygen, the fire may be smothered.
Fire blankets are generally manufactured from flame-resistant materials such as woven fiberglass fabric. Some products may also have a fire-resistant coating designed to improve heat resistance, flexibility, or handling performance.
Under BS EN 1869:2019, a fire blanket is defined as a flexible sheet intended to extinguish small fires by smothering. The standard covers performance, construction, marking, packaging, and testing requirements for non-reusable fire blankets operated by one person.
The most common use of a fire blanket is controlling a small cooking fire.
Cooking oil and grease can reach very high temperatures. If they ignite, pouring water onto the fire can cause burning oil to splash or erupt, spreading flames across the kitchen and causing serious burns.
A fire blanket can be carefully placed over a burning pan to isolate the flames from oxygen. Official fire-safety guidance recommends fire blankets as suitable equipment for certain small cooking-oil and fat fires.
The blanket should only be used when:
Never carry a burning pan outside. Moving it may spread burning oil or cause severe injuries.
A fire blanket may be used on a small fire involving paper, cardboard, or other ordinary combustible materials inside a wastebasket.
The blanket must completely cover the container so that air cannot reach the burning material. If the flames are too large to cover safely, leave the area and contact the fire service.
A sufficiently large fire blanket can help smother flames when a person’s clothing catches fire. European fire blanket standards recognize that blankets of an appropriate size may be suitable for this purpose.
The person should stop moving, get down, and avoid running because movement can supply more oxygen to the flames. The blanket can then be carefully wrapped or placed around the burning clothing to smother the fire.
Emergency medical assistance should be requested after the flames have been extinguished. Burns can be more serious than they initially appear.
Fire blankets are also used in commercial and industrial environments where small ignition risks exist.
Typical locations include:
The type and size of fire blanket should be selected according to the site’s fire-risk assessment. Commercial kitchens may require both a fire blanket and a suitable Class F or wet-chemical fire extinguisher for cooking-oil hazards.
Understanding the limitations of a fire blanket is just as important as knowing its uses.
A standard fire blanket should not be used when:
In these situations, evacuate immediately, close doors behind you when possible, and call the local emergency services.
Fire and Rescue NSW advises that a fire blanket or extinguisher should only be used during the first moments of ignition and only when the user feels confident doing so.
A standard household fire blanket is not normally the first choice for an energized electrical fire.
Turn off or isolate the electrical supply only when it is safe to do so. Use firefighting equipment specifically approved for electrical risks, or evacuate and contact the fire service.
Although EN 1869 includes an electrical-resistance test intended to reduce electric-shock risks from accidental contact with live equipment, this does not mean every fire blanket should be deliberately used on energized electrical installations. Always follow the product instructions and local fire-safety guidance.
A small household fire blanket must not be used on a burning car.
Vehicle fire blankets are much larger, heavier, and specifically designed for vehicle containment applications. Electric vehicle fires can involve toxic gases, intense heat, reignition, and battery thermal runaway.
The U.S. Fire Administration has warned that deploying fire blankets over electric vehicles with confirmed battery involvement can create serious hazards and should be handled by trained emergency responders following appropriate procedures.
Always read the instructions printed on the fire blanket container before an emergency occurs. The exact procedure may vary by product.
For a small pan fire, the general steps are:
Make sure the fire is small enough to cover completely. Keep an unobstructed exit behind you.
Do not attempt to fight the fire when it is spreading, producing heavy smoke, or making you feel unsafe.
If you can reach the cooker control without moving through flames or leaning over the burning pan, turn off the heat source.
Do not attempt this when doing so would place you in danger.
Remove the blanket from its container by firmly pulling the release straps or tabs.
Hold the blanket by its straps and fold the upper edge over your hands. This helps protect your fingers and wrists from radiant heat.
Do not allow the blanket to block your view.
Move toward the fire slowly. Hold the blanket in front of you as a heat shield.
Never throw the blanket from a distance because it may miss the fire, disturb the burning oil, or spread the flames.
Place the blanket over the nearest side of the pan first, and then gently lower it across the entire container.
The blanket should completely seal the fire and prevent air from reaching the flames.
Do not lift the blanket immediately to check whether the fire is out. Introducing fresh oxygen may cause the fire to reignite.
Leave it in position until the pan and its contents have completely cooled. Follow the manufacturer’s instructions and the directions of emergency personnel.
A fire blanket should be mounted where it is clearly visible and easy to reach during an emergency.
In a kitchen, install it:
Do not install a fire blanket directly above a stove. A person may be unable to reach it safely when a fire occurs.
Official fire-service guidance recommends mounting kitchen fire blankets on a wall where they can be accessed quickly.
Not all fire blankets provide the same level of performance. Buyers should consider several factors before selecting one.
For the UK and European markets, look for products tested to standards such as EN 1869:2019 or BS EN 1869:2019.
This standard addresses:
BSI currently lists BS EN 1869:2019 as the applicable British standard for single-person, non-reusable fire blankets designed to control small fires.
Requirements can vary between countries, so commercial buyers should confirm the regulations and certification requirements of their destination market.
The blanket must be large enough to cover the expected fire hazard completely.
Common household sizes include:
Larger blankets offer more coverage, but they must still be manageable for the intended user.
The container should display simple, easy-to-understand instructions. Pictograms can help users understand the deployment process quickly during a stressful situation.
The straps should be easy to grip and pull without requiring excessive force. They should allow the user to deploy the blanket while keeping their hands protected.
For commercial procurement, check whether the manufacturer can provide:
These documents are particularly important for distributors, importers, fire-safety companies, hotels, restaurant groups, and industrial buyers.
Most standard household fire blankets should be treated as single-use safety products.
After a blanket has been deployed, it may contain:
EN 1869:2019 covers fire blankets that are non-reusable. A deployed blanket should therefore be replaced, even when it appears to be undamaged.
Fire blankets should also be checked regularly while installed. Replace the product when the container is damaged, the release straps are missing, the blanket has been contaminated, or the manufacturer’s specified service life has expired.
A fire blanket is a valuable part of a home fire-safety plan, particularly in the kitchen. It is compact, simple to deploy, and useful for certain small fires when immediate action is safe.
However, a fire blanket should complement—not replace—other safety measures, including:
The safest priority is always protecting people. Property can be replaced; lives cannot.
The main purpose of a fire blanket is to extinguish a small fire by covering it and cutting off its oxygen supply. It is commonly used for small cooking fires and may also help smother burning clothing.
A properly tested fire blanket may control a small, contained grease or cooking-oil fire. Never pour water onto burning oil, and never approach a fire that is already spreading.
A sufficiently large fire blanket may be used to smother flames on a person’s clothing. The person should stop moving and get down before the blanket is applied. Contact emergency medical services after extinguishing the flames.
A standard fire blanket is not normally the preferred equipment for an energized electrical fire. Isolate the electricity only when safe, follow the blanket manufacturer’s instructions, and use equipment approved for the specific electrical hazard.
The best location is on a visible, accessible wall near the kitchen exit. It should not be installed directly above or beside the stove, where flames could prevent safe access.
Keep the blanket in place until the burning object and surrounding materials have completely cooled. Removing it too early may introduce oxygen and cause reignition.
Some manufacturers specify a service life or recommended replacement date. Inspect the container, straps, labels, and blanket condition regularly, and follow the manufacturer’s maintenance instructions.
So, what is a fire blanket used for?
A fire blanket is primarily used to smother small, contained fires by restricting their oxygen supply. Its most common applications include cooking-oil fires, small wastebasket fires, and clothing fires.
When correctly selected, installed, and used, a fire blanket can be an effective first-response fire-safety tool. However, it should only be used when the fire is small, the escape route is clear, and the user can act without putting themselves at risk.
When there is any doubt, leave the building, alert others, and call the emergency services.
