Water Storage Treatment 2 oz Glass Bottles 60 gallons Purification vs UltraPress Purifier Nature Edition: which is safer?

Where these two actually differ

• We flag Chemical overdose or misuse, Degradation and loss of efficacy over time, Glass bottle breakage and spillage and Chlorine residue and taste/odor on the Aquamira and not on the Grayl.
• We flag Plastic leaching (housing material unspecified), Bacterial growth in cartridge or housing, Cartridge seal degradation over time and Activated carbon dust or fines in first use on the Grayl and not on the Aquamira.
• The Aquamira is glass bottles, sodium dichloroisocyanurate treatment chemical where the Grayl is Plastic housing with activated carbon 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.