67mm UV Haze Filter vs Master Clear Filter MRC Nano: which is safer?
B+W 67mm UV Haze Filter is the clear pick. B+W Master Clear Filter MRC Nano carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
B+W
67mm UV Haze Filter
PFAS grade
B 85/100
Overall grade
B 81/100
Verdict
Buy
Hazard flags
⚑ 1
Material
Glass optic with multi-coated lens surfaces
Confidence
78%
PossibleOptical coating degradation
B+W
Master Clear Filter MRC Nano
PFAS grade
F 40/100
Overall grade
F 32/100
Verdict
Skip
Hazard flags
⚑ 2
Material
Glass with water-repellent nano-coating
Confidence
45%
PossibleCoating degradation over time
PossibleUndisclosed PFAS in hydrophobic coating
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 waterproof camera & lens protection: see the full ranking