CO2 FIRE EXTINGUISHERS contain pure carbon dioxide which is a clean, non-contaminating and Odorless gas. Leaving no residue. Carbon dioxide is discharged as a white cloud of “snow” which Smothers a fire by eliminating oxygen. Suitable for class b flammable liquid fires (petrol, oil, Solvents), and recommended for use on live electrical equipment. CO2 TROLLEY MOUNTED FIRE EXTINGUISHERS are environmentally safe. These are advisable to use In indoors where wind and drafts doesn’t affect discharge. Co2 type trolley mounted fire Extinguishers are available in 25 kg, 45 kg. 50 kg (25+25) double trolley mounted units are Available on special orders. We provide fully charged and ready to use fire extinguishers and fire trolleys.