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
Tiffen
Digital HT Twin Pack UVP & CP Screw-In Filter Kit
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
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 ↗The full breakdown
What it's made of and why it matters
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.
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 we don’t know
- 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.
Better-graded alternatives in Waterproof Camera & Lens Protection Cases
Think Tank Photo
Think Tank Digital Holster 5 V3
Ballistic nylon, weather-sealed fabric, metal hardware
Undisclosed water-repellent coating chemistry
Limited concern
Coating degradation over time
Limited concern
Camera holster with weather treatment; PFAS status undisclosed.
⚠Brand says nothing about PFAS
Nikon
WP-CP3 Marine Case for Camera
Polycarbonate/rubber with waterproof seals
Polycarbonate degradation over time
Limited concern
Rubber gasket hardening and seal failure
Limited concern
Microbial growth in sealed moisture pockets
Limited concern
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
Nikon
WP-N1 Waterproof Housing
Polycarbonate housing with waterproof seals
Gasket material degradation
Limited concern
Polycarbonate microcracking or crazing
Limited concern
No coating described, and no PFAS statement from the brand.
⚠Brand says nothing about PFAS
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.