The situation when a fire starts in a room or car, and there is no professional fire extinguishing agent at hand, is classified as critical. In such seconds, the count is not for minutes, but for moments, and not only the safety of property, but also the lives of people depend on the correctness of your actions. Panic is the main enemy at this moment, so it is necessary to immediately mobilize knowledge about the physics of combustion and the available means. Primary task — assess the scale of the disaster: if the fire has engulfed an area of more than a square meter or is quickly spreading through flammable materials, the only correct decision is to evacuate and call firefighters.
However, if the fire is localized and has just begun, it is quite possible to extinguish it using household items and materials. The principle of extinguishing is always based on stopping the access of oxygen to the source of the flame or a sharp decrease in the temperature of the burning substance. Understanding that what exactly is burning, dictates the choice of method: water should not be poured onto burning oil or live electrical appliances, and thick fabric is ineffective against spilled gasoline. In this article, we will analyze specific action algorithms for various scenarios, based on the physical properties of materials and proven emergency response techniques.
Oxygen insulation principle: dense fabrics and carpets
The most accessible and common way to fight a small fire in everyday life is to cut off the supply of oxygen. Thick fabrics such as wool blankets, heavy coats, carpets or special fire-resistant fabrics (feather felt) are ideal for this. The mechanism of action is simple: by covering the flame, you create a sealed dome, devoid of an oxidizer, without which combustion stops. It is important that the material is natural and dense; Synthetic fabrics can melt and become a source of fire or toxic smoke.
When using this method, it is critical to act quickly and decisively. You need to cover the fire with a movement “from yourself” so that the flame does not rush in your direction. After the fireplace is covered, do not rush to remove the fabric immediately - let the items cool, otherwise the influx of fresh air may cause the smoldering materials to ignite again. This method is especially effective when clothing on a person catches fire or trash in a trash can ignites.
⚠️ Attention: Never use lightweight synthetic fabrics (nylon, polyester) to extinguish a fire, as they can instantly catch fire or melt, sticking to the skin and aggravating burns.
Safety precautions when working with dense fabrics require hand protection. If possible, wrap your hands in an extra layer of cloth or wear thick gloves to avoid getting burned. Remember that the effectiveness of the method depends on the tightness of the material to the surface: if there are gaps through which air enters, extinguishing may take longer or be ineffective. The key to success is to completely cover the combustion perimeter the first time.
If a person’s clothes are on fire, shout “Stand, lie down, roll!”: stop the panic, throw the person to the floor and roll on the ground or cover with a thick cloth, pressing the edges to the floor.
Use of bulk substances: salt, soda and sand
The emergency response arsenal often includes ordinary kitchen or construction bulk materials. Baking soda (sodium bicarbonate) and coarse table salt are excellent extinguishers for small fires, especially those involving oils and fats. When heated, soda releases carbon dioxide, which is heavier than air and displaces oxygen, and also requires a significant amount of heat to decompose, which helps cool the fire.
Sand and soil are classic products, especially suitable for garages, cottages or outdoor conditions. Their mechanism of action is double: they simultaneously block the access of oxygen and create a mechanical barrier that prevents the spreading of the burning liquid. To be effective, the layer of sand must be thick enough to completely cover the burning surface. Unlike water, sand does not cause burning oil to splash, which makes it indispensable when extinguishing spilled fuel or oil in a pan.
Consider the comparative effectiveness of various bulk solids in the table below:
| Substance | Efficiency | Best use | Limitations |
|---|---|---|---|
| Baking soda | High | Burning oil in the kitchen | Requires large volume, ineffective against hard materials |
| Coarse salt | Average | Small pockets of fat | Can melt to form a crust, requires a lot of material |
| river sand | Very high | Flammable liquids, gasoline | Heavy, requires physical access to the source |
| Washing powder | Low | Only as a last resort | Contains organic matter and may catch fire |
Why can't you use flour for stewing?
Flour is a combustible dust. When poured into a flame, it can create a cloud of suspension, which, upon contact with the fire, will cause a volumetric explosion (deflagration), significantly intensifying the fire and causing serious burns.
Water as a universal but dangerous tool
Water is the first thing that comes to mind when you think of a fire, and it truly is a powerful cooling tool. As water evaporates, it absorbs a colossal amount of thermal energy, sharply reducing the temperature of the burning object below the ignition point. However, the use of water is strictly regulated by the type of material being burned. Categorically prohibited use water to extinguish live electrical appliances, as this will result in a short circuit and electric shock to the person holding the container.
The second critical prohibition concerns the burning of flammable liquids (FLLs), such as gasoline, kerosene, oil or solvents. The density of water is higher than the density of oil, so when you try to pour water on burning oil, the water will sink to the bottom of the container, instantly boil and, with its volume, throw the burning oil upward, creating a fiery fountain and increasing the area of the fire many times over. In such cases, water acts not as an extinguishing agent, but as a spreading agent.
If you are sure that solid materials are burning (wood, paper, fabric, plastic) and there is no electricity in the affected area, water can be used generously. It is best to use a spray jet rather than a compact jet to increase the evaporation area and cooling efficiency. To deliver water to hard-to-reach places, you can use flower sprayers or garden sprayers, which create a fine suspension that instantly knocks down the flames.
☑️ Algorithm of actions in case of fire
Extinguishing electrical wiring and live devices
Fires in electrical wiring or appliances are particularly dangerous due to the risk of electric shock. The first and most important step in such a situation is blackout premises. You need to go to the electrical panel and turn off the input circuit breaker or unscrew the plugs. Only after you have verified that there is no voltage (or if this cannot be done safely) can you begin active extinguishing actions.
If it is impossible to turn off the power to the room or you do not know where the breaker is located, use only dry, non-conductive materials. Powder compositions (sand, earth), as well as carbon dioxide fire extinguishers (if available), are ideal. As a last resort, if the fire is small, you can try to knock down the flame with a stream of exhalation (only if the flame is very weak) or cover it with a thick, dry cloth, but this must be done with extreme caution, using long objects (mop, shovel handle) to keep your hands away from a possible arc.
⚠️ Attention: Never try to extinguish a burning electrical appliance with water, even if it is unplugged. Residual high voltage charge may remain in capacitors and other circuit components.
To extinguish electrical installations, you can also use special aerosols if they are available in a first aid kit or car kit, but their range is limited. The general rule here is to minimize contact with conductive surfaces. If the fire has spread to wallpaper or furniture near the outlet, and there is a risk of contact with the wiring, the priority becomes evacuation and waiting for professionals, since the risk to life is too great.
The main rule in case of an electrical fire is to first turn off the power, then extinguish it. If it is impossible to turn off the power, do not extinguish with water and do not touch with bare hands.
Specifics of stewing oil and fat in the kitchen
A kitchen fire is one of the most common scenarios in household statistics. Hot oil in a frying pan flares up instantly, and the reaction here should be lightning fast. As mentioned, water is taboo. The most effective method is to block oxygen access. You need to take a lid that completely covers the frying pan, or baking sheet, or a damp (well wrung out) towel and cover the container tightly. cover you need to place it away from you, covering the far edge of the frying pan first, so that the flame does not escape towards your hands.
If there is no lid, use baking soda. It needs to be poured in large quantities directly into the center of the flame. The reaction of neutralization and release of carbon dioxide will put out the fire. Can I also use flour? No! As already mentioned, flour is explosive. You can use coarse salt, but you will need a lot of it. Some sources suggest using potatoes, cut into large chunks, as a temporary barrier, but this is less effective than baking soda.
It is important to remember the heat resistance of the cookware. If the pan is red hot, sudden cooling (for example, if you still risk using water after the oil has completely burned out) can warp the metal. But at the moment of burning, it’s too late to think about the frying pan - the main goal is to put out the flame. After extinguishing, do not open the lid for 15-20 minutes until the oil has completely cooled, otherwise the influx of oxygen will cause a re-flare.
What to do if your fume hood catches fire?
If the fire spreads to the hood, do not turn on the fan under any circumstances - this will fan the flames throughout all the air ducts. Immediately turn off the gas (if the stove is gas) and evacuate, since extinguishing the hood yourself is extremely dangerous due to the access of oxygen through the ducts.
Actions in case of fire in a car
A car is a concentration of flammable liquids (gasoline, oil, brake fluid), plastic and electrical components. A fire in a car develops catastrophically quickly. At the first sign of smoke or fire (often from under the hood or near the wheels), you must immediately stop, turn off the engine and evacuate all passengers to a safe distance (at least 10-15 meters). Hood The car cannot be opened completely - a sudden influx of oxygen will cause a flash. You can only slightly open the latch and spray it with a fire extinguisher, if you have one, or fill it with sand/earth through the gap.
If there is no fire extinguisher, and the fire has just begun (for example, wiring or rags have caught fire), you can try to throw sand, earth or snow (in winter) at the fire. As a last resort, if a small local area is on fire (for example, a carpet in the cabin), you can try to throw out the burning object with a kick or a long stick, but only if this does not lead to the spread of fire to the seat upholstery. Extinguishing gasoline with water is useless and dangerous, since it is lighter than water and will burn on its surface, spreading.
Particular attention should be paid to lithium batteries in electric vehicles. Extinguishing them requires a huge amount of water and a professional approach. If an electric car catches fire, the only correct solution is to move to a safe distance and wait for firefighters, since such batteries are prone to thermal runaway and can explode.
⚠️ Attention: Always have a supply of sand in a box in garages and parking lots. This is often a more reliable means of initially extinguishing a fuel spill than trying to find water or clothing.
Frequently asked questions (FAQ)
Is it possible to extinguish a fire with alcohol or vodka?
No, this is strictly prohibited. Liquids containing alcohol are themselves flammable. Pouring them onto the fire will only add fuel, causing the flame to intensify and a possible vapor explosion.
Is Coca-Cola effective in putting out fires?
There is a myth that soda is effective due to the phosphoric acid content. In reality, the volume of gas and foam that it can create is negligible for real extinguishing, and the sugar in the composition forms a sticky, flammable crust when it dries. This is ineffective and dangerous.
What to do if the inside of the microwave catches fire?
Don't open the door! Disconnect the device from the network. Without access to oxygen, the fire inside the chamber will quickly go out on its own. If you open the door, the influx of air will cause the flame to flash outward.
Will washing powder help?
Regular laundry detergent contains surfactants and fragrances that can burn. Although it can mechanically cut off oxygen in an emergency (like sand), its effectiveness is low and there is a risk of supporting combustion. It is better to use soda or sand.
How to extinguish a person if his clothes are on fire?
You can't let him run - it will fan the flames. You need to knock the person to the ground so that the flame is on top, and roll him along the ground, knocking out the fire. Ideally, cover with thick non-synthetic fabric (coat, blanket), pressing the edges to the floor to block oxygen.