Plus 30 Cup Dispenser vs 40-Cup Glass Water Filter Dispenser: which is safer?

Where these two actually differ

• We flag Bacterial growth in filter media if not maintained, Ion-exchange resin particles or fragments in filtered water, Activated carbon dust or fines in first use and Reduced contaminant removal if filter exceeds rated capacity on the PUR and not on the ZeroWater.
• We flag Ion-exchange resin cartridge composition opacity, Bacterial or mold growth in housing and spigot and Polypropylene plastic durability and UV exposure on the ZeroWater and not on the PUR.
• The PUR is activated carbon filter, plastic dispenser housing where the ZeroWater is borosilicate glass, plastic pitcher housing, ion-exchange resin cartridge, which is most of the difference in these two grades.
• These two are 5 points apart, close enough that price and fit should decide it rather than our grade.