Carbon dioxide: Carbon dioxide discharges at cold temperatures and smothers fires, blocking them from obtaining much more oxygen. This materials is located in Class B and C extinguishers. The sodium bicarbonate interrupts the chain reaction from the fuel plus the silica soaks up any unburned gas, avoiding contact with air. https://timber-company80123.blue-blogs.com/35831806/5-simple-techniques-for-fire-equipment-servicing