Dry powder-based fire suppression systems contain some dry chemicals in them for extinguishing the fire. Different types of fire need a different type of dry chemical for their extinguishment. For class B fire, sodium bicarbonate is used and Monoammonium phosphate is used for A, B, and C class of fire.
Nitrogen is used as a propellant which helps the dry powder to come out from the cylinder of the fire suppression system. The valve gets open and the agent releases out of the cylinder and suppresses the fire.
