B+W · Waterproof Camera & Lens Protection
B+W Basic Clear Filter MRC
Lower PFAS concern. Optical glass filters rarely use PFAS-based coatings.
B+W Basic Clear Filter uses multi-coated optical glass. Glass optics typically avoid PFAS, though B+W does not disclose coating specifics. No public lab testing available.
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Optical glass, multi-coated
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
Category baseline
other is a category where PFAS exposure is more common.
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The B+W Basic Clear Filter MRC is constructed from optical-grade borosilicate or soda-lime glass with multi-resistant coating (MRC) applied to reduce reflections and improve light transmission. This coating is a thin optical interference layer, not a binder or protective enamel vulnerable to leaching. Optical glass itself is chemically inert under normal use; the filter sits between your lens and sensor, not in contact with food, skin, or heat sources that would trigger leaching pathways.
The brand's record and disclosure
B+W is a Schneider Kreuznach subsidiary and established optical equipment manufacturer with no public recalls, safety violations, or formal disclosures tied to their filter products. The company has not issued public PFAS statements, typical for specialty optics firms where PFAS use is unlikely. Industry-wide, multi-coated optical filters are not known to use PFAS-based chemistries in their coatings.
How it compares in its category
Clear protective filters across brands (B+W, Hoya, Kenko, Tiffen) show minimal differentiation in material safety; all use optical glass with anti-reflective coatings. B+W MRC coatings are mid-to-premium in optical performance but functionally equivalent in safety profile to competitor offerings. Uncoated glass filters are marginally simpler but offer no safety advantage and worse optical quality.
If you buy it
Store the filter in a protective case or pouch when not mounted; optical coatings can scratch if rubbed with abrasive materials. Clean only with lens-specific microfiber cloths and optical cleaning fluid; water and breath alone are adequate for routine dust removal. Replace if the front or rear coating develops visible scratches or haze, as this degrades image quality and can trap dust. No heating, chemical exposure, or long-term storage hazards apply to this product.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Optical coating degradation and scratching
The MRC coating can degrade with improper cleaning or storage, though this is a performance issue, not a direct safety hazard. Degraded coatings do not leach; they simply scatter light and may harbor dust particles.
Lead or cadmium in glass
Modern optical glass used in camera filters is formulated without lead or cadmium. No recalls or test data suggest contamination in B+W optical filters.
Volatile organic compounds (VOCs) or off-gassing
Optical glass and cured optical coatings do not off-gas VOCs under normal conditions. This is a sealed optical component exposed to air only, not a storage or interior furnishing.
Micro-abrasion or particle shedding from coating
Well-bonded multi-coated filters do not shed particles into optical path or environment. No established incidents reported for B+W MRC filters.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 78% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
More waterproof camera & lens protection grades
How we score: every product runs through the same public 0–100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.