The Sonic Fire Extinguisher That’s Changing Firefighting
We found something on the internet that we thought was awesome—an invention that could change how we fight fires. Instead of relying on water or chemicals, two engineering students developed a device that extinguishes flames using nothing but sound waves.
It might sound like a sci-fi concept, but this isn’t just a theoretical experiment. The invention is real, functional, and has the potential to revolutionize fire safety.
The Invention: A Fire Extinguisher Powered by Sound
Seth Robertson and Viet Tran, two engineering students from George Mason University in Virginia, designed a fire extinguisher that uses sound waves to put out flames. The project started as a senior research assignment, but after extensive testing and prototyping, they successfully built a working device for around $600.
Unlike traditional fire extinguishers that rely on foam, powder, or chemicals, their device emits low-frequency sound waves that disrupt the conditions necessary for a fire to sustain itself.
How Does Sound Extinguish Fire?
Fire needs three key elements to survive: heat, fuel, and oxygen. The principle behind this invention is to use sound waves to separate oxygen from the flame.
Photo Credits: PBS
Sound waves are pressure waves—they move air molecules back and forth.
At the right frequency, this movement disturbs the flame’s structure and prevents it from accessing oxygen.
Without oxygen, the fire simply dies out.
While high-frequency sounds didn’t have much effect, Robertson and Tran discovered that low bass frequencies—specifically between 30 to 60 Hz—were highly effective. These are the same deep bass tones you’d hear in genres like hip-hop, dubstep, or drum & bass.
The Tech Behind the Device
The prototype consists of two key components:
An amplifier that generates the low-frequency sound.
A collimator (a device that focuses sound waves) to direct the pressure waves precisely at the fire.
The result is a portable, non-destructive way to put out fires without leaving behind chemical residue or water damage.
The Potential for Larger-Scale Applications
Right now, the device is most effective on small fires, such as grease fires in kitchens. However, its potential applications go far beyond that. The inventors believe that with further development, sonic fire suppression could be adapted for larger-scale use, such as:
Fire suppression systems for buildings—an automatic system using sound waves could provide a clean alternative to traditional sprinklers.
Spacecraft fire control—in low-gravity environments, chemical extinguishers can be challenging to use, making sound-based systems a promising alternative.
Wildfire management—if the technology can be scaled up, it could offer a new method for fighting forest fires without the environmental impact of water or chemical retardants.
What’s Next?
Robertson and Tran have already filed for a patent and plan to continue refining their invention. While more testing is needed before it becomes a widely available firefighting tool, the concept itself is groundbreaking.
A fire extinguisher that uses sound may have started as a student project, but it could be the future of fire safety.
Let’s Collaborate!
Need help building the tone for your production? Hit us up – the Rareform Audio team would love to help you create the perfect soundtrack that speaks to your audience and enhances the power of your visual storytelling to new heights!
Rareform Highlights
Join our Spotify Playlist and vibe with us! Featuring an array of tunes our team has been listening to.
