No. 1 Filtered Water Pitcher vs Filter: which is safer?

ZeroWater Filter is our pick: better on PFAS and on the overall hazard picture.

Clearly Filtered

No. 1 Filtered Water Pitcher

PFAS grade

A 100/100

Overall grade

B 82/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Activated carbon and ion-exchange filter media; BPA-free plastic pitcher housing

Confidence

62%

PossibleBacterial growth in filter media

PossibleFilter media degradation over time

ReportedIncomplete contaminant removal claims

Why this gradeBuy

Our pick

ZeroWater

Filter

PFAS grade

A 100/100

Overall grade

B 88/100

Verdict

Buy with care

Hazard flags

⚑ 3

Material

not stated

Confidence

100%

PossibleBacterial colonization in filter media and housing

PossibleFilter media degradation and microparticulate release

PossibleCross-contamination from refill handling

Why this gradeBuy

Both products run through the same public rubric: materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →

More water filters: see the full ranking