Hoya · Waterproof Camera & Lens Protection Cases
Hoya NXT Plus CPL Circular Polarizer Filter
Lower concern. No known PFAS in glass optics.
Hoya CPL filters pair optical glass with standard anti-reflective coatings. The brand doesn't disclose PFAS use. Glass filters typically pose low PFAS risk.
The better-graded swap
Sigma
Sigma 46mm WR Protector Filter
85/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Optical glass lens with multi-coated optics
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What Hoya NXT Plus CPL Polarizer Filter is made of, ingredients and materials
The Hoya NXT Plus CPL is constructed from optical-grade glass with multi-layer anti-reflection coatings designed to reduce glare and enhance color saturation in photography. Optical glass is chemically inert and does not leach substances into food, skin, or air during normal handling. The coatings are applied in a vacuum process and cure into stable, durable layers that do not off-gas or degrade under typical camera use.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Unknown / proprietary coating
A coating is recorded with no disclosed chemistry.
What’s reassuring
Coating degradation and particulate release
Multi-layer coatings on Hoya filters are engineered for durability and do not peel, flake, or release particles under normal photography use. No established incidents of coating failure releasing contaminants have been reported for this product.
Glass surface contamination (dust/residue handling)
The optical glass itself is inert; hazard risk comes only from external contamination (dust, fingerprints) during handling. Proper storage and cleaning eliminate this concern and present no health impact when handled normally.
Off-gassing or volatile organic compounds
Optical glass and cured optical coatings do not emit VOCs or formaldehyde in typical use. Coatings are vacuum-applied and fully polymerized, eliminating off-gassing risk present in some consumer adhesives or finishes.
Heavy metals
While optical coatings may contain trace elements (e.g., titanium oxides, silica), they remain locked in the coating matrix and do not leach during normal use or accidental contact with skin. No known contamination pathway exists for this filter type.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
Hoya is a long-established Japanese optics manufacturer with decades of product history and no significant safety recalls or contamination incidents on record for filters. The company does not publicly disclose detailed PFAS or coating chemistry, which is typical for optical manufacturers where material transparency is limited by proprietary formulae. No environmental or health certifications specific to consumer safety are documented for this product line.
How it compares in its category
Circular polarizer filters are passive optical devices with minimal material hazard profile compared to other photography accessories. Hoya NXT Plus is positioned as a premium option; competitor filters (B+W, Marumi, Tiffen) have comparable glass and coating safety records. Since filters are external attachments that never contact skin, food, or water, and are not heated or ingested, material migration hazards are negligible across the category.
If you buy it
Store the filter in a clean, dry case to prevent dust accumulation on the coatings. Clean the glass surfaces only with lens-specific cloths or air blowers; avoid harsh solvents that could damage the coatings over time. The filter is durable and does not require replacement unless the glass is visibly damaged or coatings deteriorate (rare). No heat exposure, maintenance intervals, or special precautions are necessary during normal camera use.
What is not known about PFAS in this product?
- Basis
- Model estimate, 72% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Hoya has made none
Formulations change between production runs, so check the current label. How we grade.
What are the PFAS-free alternatives to Hoya NXT Plus CPL Circular Polarizer Filter?
- Optical glass lens with multi-coated optical surfaces
- We found no PFAS statement from the brand
- No PFAS statement found from the brand
- Glass lens (borosilicate or soda-lime glass)
- Optical coating degradation
2 hazards checked on this product, all on its full breakdown.
- Optical glass, aluminum frame, non-coated optical surfaces
- We found no PFAS statement from the brand
- Optical glass fragility and sharp edges
More waterproof camera & lens protection cases 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.