27oz Wide Water Bottle with Loop Cap vs Aquamira Shift Filter Bottle: which is safer?

Where these two actually differ

• We flag Cap or closure contamination and Bacterial or mold growth from moisture retention on the Klean Kanteen and not on the Mira.
• We flag Bacterial growth in filter media or housing, Filter media degradation and microplastic shedding, Incomplete contaminant removal if filter expired and Housing material transparency (unverified plastics) on the Mira and not on the Klean Kanteen.
• The Klean Kanteen is 18/8 stainless steel, no interior coating where the Mira is activated carbon and/or ion exchange filter media, plastic bottle housing, which is most of the difference in these two grades.
• The gap is 30 points, wide enough that this is not a close call, and the Klean Kanteen is the one to buy.
• We are less certain about the Mira grade, at 62% confidence against 92%, because it discloses less.