Master Clear Filter MRC Nano vs UV Haze 010 Filter: which is safer?
B+W UV Haze 010 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.
B+W
Master Clear Filter MRC Nano
PFAS grade
Poor 40/100
Overall grade
Poor 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
Our pick
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%
Where these two actually differ
- We flag Coating degradation over time and Undisclosed PFAS in hydrophobic coating on the B+W and not on the B+W.
- The B+W is Glass with water-repellent nano-coating where the B+W is Optical glass lens with multi-coated optical surfaces, which is most of the difference in these two grades.
- The gap is 45 points, wide enough that this is not a close call, and the B+W is the one to buy.
- We are less certain about the B+W grade, at 45% confidence against 82%, because it discloses less.
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 →
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