Flash Flood Emergency Guide: Proper Use of Household Life-Saving Equipment

The persistent El Niño climate phenomenon has triggered torrential rains and flooding across multiple regions worldwide.

While many households possess life-saving equipment, most people merely stock the items without being familiar with how to use them; in critical moments, this often leads to operational errors and missed opportunities for escape. This article provides a detailed guide on the correct usage, applicable scenarios, and key pitfalls to avoid regarding various common household life-saving devices during flood events.

I. Automatic/Manual Inflatable Life Jackets: Essential Escape Gear for Families

Compact, easy to store, and lightweight to wear, inflatable life jackets are the premier choice for household flood safety. Suitable for the elderly, children, and non-swimmers, they serve as critical protective equipment during flood evacuations involving wading or accidental immersion. They come in two types: automatic and manual inflation.

Automatic Inflatable Life Jackets: These should be worn beforehand; no manual activation is required prior to use. Upon accidental immersion in floodwaters, the device automatically inflates within 3–5 seconds, rapidly generating over 150N of buoyancy to securely support the body. This keeps the head and shoulders above water, preventing choking or drowning. In the event of an automatic activation failure, the user can simply pull the emergency manual cord to force inflation, ensuring a reliable safety backup.

Manual Inflatable Life Jackets: These are suitable for adults with swimming skills. Users manually pull the activation lever to inflate the jacket when facing flood hazards, needing to wade through water, or upon accidental immersion. In emergencies, the jacket can also be manually inflated via the built-in oral inflation tube, making it adaptable to various complex flood scenarios.

Important Precautions: The CO2 cylinder and water-activated trigger mechanism are single-use consumables and must be replaced promptly after any deployment. Regularly inspect the device's expiration date and seal integrity to ensure it does not fail during an emergency.

II. Life Buoy: Dual-Purpose Equipment for Floating Safety and Rescue

Solid foam life buoys require no inflation, are virtually failure-proof, and offer exceptional safety. They are essential items for household flood preparedness, suitable for both self-rescue and rescuing family members or neighbors who have fallen into the water.

For self-rescue, position the life buoy under your armpits and hold onto the ring with both hands. Relax your body and lie flat, allowing the buoy's buoyancy to keep you afloat while awaiting rescue; avoid panicking or struggling, as this leads to rapid exhaustion.

III. Life-saving Line Thrower: A Key Auxiliary Tool for Flood Rescue

Standard ropes sink in water and tangle easily, whereas specialized floating rescue lines are buoyant, abrasion-resistant, and waterproof—making them essential equipment for long-range rescues and personnel evacuation during floods.

If family members are trapped in a flooded area, a lifebuoy equipped with an automatic water-activated inflation mechanism can be accurately thrown to them; once they secure the flotation device, they can be safely pulled to safety via the attached line.

Ⅳ. Emergency survival whistle: low-cost and efficient distress signal tool

In flood danger situations, the noise of heavy rain and water flow is extremely loud, and human shouts have a short propagation distance and consume energy quickly. However, the high-frequency survival whistle has strong penetrating power and long propagation distance, making it the core signaling tool for seeking help after being trapped.

When you are floating in the water, trapped on a roof or window sill and waiting for rescue, you should wear life-saving equipment to stabilize your body, blow the whistle intermittently, instead of calling for help, and continuously transmit location signals to search and rescue personnel, greatly increasing the probability of being rescued. At the same time, it can be used with mobile phone lights and reflective signs to strengthen the distress signal in all aspects.

V. Waterproof Lighting Equipment: Essential for Nighttime Flood Evacuation

Floods are often accompanied by power outages, heavy rain, and impaired visibility; waterproof headlamps and high-intensity flashlights are crucial tools for escaping at night, assessing road conditions, and identifying safe routes.

Turning on lighting equipment during evacuation allows you to clearly avoid hazards such as deep, water-filled pits, obstacles, areas with electrical leakage, and swirling debris. If trapped, keeping the light on helps search-and-rescue teams quickly pinpoint your location, buying precious time for the rescue effort. Prioritize equipment with an IPX7 waterproof rating or higher to prevent water damage or equipment failure during use.