WR Protector Filter vs UV Haze 010 Filter: which is safer?

B+W UV Haze 010 Filter is our pick, better on PFAS and on the overall hazard picture.

Sigma WR Protector Filter

Sigma

WR Protector Filter

PFAS grade

Excellent 85/100

Overall grade

Good 73/100

Verdict

Buy

Hazard flags

⚑ 3

Material

Fiberglass filter media with cellulose

Confidence

72%

PossibleFiberglass fiber shedding

PossibleMicrobial biofilm growth in housing

PossibleBacterial colonization if unused

Why this gradeBuy

Our pick

B+W UV Haze 010 Filter

B+W

UV Haze 010 Filter

PFAS grade

Excellent 85/100

Overall grade

Excellent 85/100

Verdict

Buy

Hazard flags

none flagged

Material

Optical glass lens with multi-coated optical surfaces

Confidence

82%
Why this gradeBuy

Where these two actually differ

  • We flag Fiberglass fiber shedding, Microbial biofilm growth in housing and Bacterial colonization if unused on the Sigma and not on the B+W.
  • The Sigma is Fiberglass filter media with cellulose where the B+W is Optical glass lens with multi-coated optical surfaces, which is most of the difference in these two grades.
  • These two are level, close enough that price and fit should decide it rather than our grade.

Both products run through the same public rubric, which covers 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 waterproof camera & lens protection cases, see the full ranking