IFEX 3000

The Impulse Firefighting Gun from IFEX Technologies can be used to put out fires - small and large - from a distance with a combination of compressed air, small quantities of water and foam additives.

Here's a video of the device in action:

Since the firefighting gun is highly portable, it can be deployed by a firefighter very quickly to suppress fires before they spread.

Image is from IFEX Technologies.
Video is from Tech Insider.