Advanced PSA System (APSA)

DR has a special fire suppression system that uses nitrogen to put out fires, because nitrogen does not breakdown or create toxic by-products when in the presence of flames. The system functions by extracting air from the surrounding environment and running it through various substrates under reduced pressure to adsorb particular gases. First, atmospheric air passes through APA (alkaline pyrogallic acid), which adsorbs oxygen. It then passes through palladium, which adsorbs hydrogen. It then goes through zeolite, which captures nitrogen and carbon dioxide. The zeolite and palladium are then heated to release nitrogen and carbon dioxide which are used to fight fires. The hydrogen and oxygen is further processed to be used as fuel for the drone.