Fire extinguisher

Fire extinguishers were devices used to put out fires. They usually sprayed cold carbon dioxide, and were sometimes used as makeshift weapons.

The First Doctor used a fire extinguisher against a dragon which lived in the forest outside the Pied Piper's castle. (TVC: Challenge of the Piper)

Ben Jackson and Polly Wright used adapted fire extinguishers to spray Cybermen with a chemical potion designed to kill them. (DW: The Moonbase)

Upon her first meeting with the the Doctor, Jo Grant used a fire extinguisher to out out a fire among the Doctor's equipment. The Doctor berated her for this as she had ruined his work. (DW: Terror of the Autons)

The Third Doctor, Greg Sutton and the Brigade Leader used fire extinguishers against the Primords. (DW: Inferno)

The Ninth Doctor sprayed Slitheen with a fire extinguisher, distracting them long enough for Rose Tyler and Harriet Jones to get away from them. (DW: World War Three)

The Tenth Doctor froze a Clockwork Droid which was stalking Jeanne-Antoinette Poisson with an ice-spraying fire extinguisher he got from the SS Madame De Pompadour. (DW: The Girl in the Fireplace)

The Eleventh Doctor used a fire extinguisher to capture Alaya. (DW: The Hungry Earth)

Clyde Langer and Rani Chandra used fire extinguishers to temporarily disable nanoforms. (SJA: Prisoner of the Judoon)