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Water sprinklers don’t starve flames of oxygen—so Cologne-based Fogtec
has developed an extinguisher that makes a water mist do the job. The firm’s
High Pressure Water Mist is produced by pressurising water to 100 atmospheres
before passing it through a nozzle, causing abrupt vaporisation. The high
density of tiny droplets in the fire region provides a much larger water surface
area than a sprinkler. The mist has the additional benefit of not waterlogging
expensive electrical equipment.