Hoya · Waterproof Camera & Lens Protection Cases
Hoya Alpha II Lens Protection Filter
No PFAS information public. Coating formula unspecified.
Hoya Alpha II uses treated glass optics without revealing coating chemistry or PFAS content. Some optical coatings do use fluorinated materials.
The better-graded swap
Peak Design
Peak Design Camera Cube
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
Glass optics with unspecified protective coatings
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
You may also be interested in
Top-graded picks in the categories readers replace first, every one scored on the same rubric.
- polypropylene filter housing, carbon/sediment cartridge
- We found no PFAS statement from the brand
- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
Aquasure
Premier Series 75 GPD Under Sink Reverse Osmosis Water Filtration System
- RO membrane, carbon filters, stainless steel housing
- We found no PFAS statement from the brand
- Bacterial and microbial growth in housing and filters
4 hazards checked on this product, all on its full breakdown.
Avocado
Vegan Mattress
- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
- Heavy metals
2 hazards checked on this product, all on its full breakdown.
What Hoya Alpha II Lens Protection Filter is made of, ingredients and materials
Hoya Alpha II filters are optical glass with multi-coated surface treatments designed to reduce reflections and improve light transmission. The core glass itself is inert borosilicate or similar optical-grade material, chemically stable under normal use. The coating formulations are proprietary and unspecified publicly; these coatings are applied in thin layers and not intended for ingestion or skin contact, minimizing direct exposure pathways compared to cookware or food-contact materials.
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.
Glass fragility and handling injury
Optical glass is breakable; shattered edges pose cut risk. This is a mechanical hazard, not chemical, and is standard for all glass filters. Proper storage and case use mitigate risk.
PFAS
Some optical coatings historically used fluorinated compounds for hydrophobic or oleophobic properties. Hoya's Alpha II coating composition is proprietary and undisclosed; PFAS presence cannot be ruled out but is not confirmed. Exposure via normal use is negligible because coatings are not volatile at room temperature and not ingested.
Source, ATSDR ↗What’s reassuring
Coating leachables (unspecified composition)
Hoya does not disclose optical coating chemistry. Coatings are not food-contact and minimal direct skin contact occurs. No public incidents of coating degradation releasing harmful compounds into food or water have been reported for this product class.
Solvent residues from manufacturing
Optical filters undergo cleaning during manufacturing. No public data links residual manufacturing solvents in camera optics to consumer harm. Product is not heated or ingested, limiting exposure pathways.
How is this PFAS grade calculated?
The brand's record and disclosure
Hoya is a major Japanese optical manufacturer with no established public recalls or safety incidents tied to Alpha II filters. The company does not publicly disclose coating chemistry or PFAS use in optical products, reflecting industry-wide opacity around optical coating compositions. No third-party certifications for chemical safety are marketed for this product line. Hoya maintains ISO quality standards but does not typically engage in consumer-facing material safety disclosure for camera accessories.
How it compares in its category
Optical filters across brands (B+W, Canon, Nikon, Kenko) share similar construction, glass cores with proprietary anti-reflective coatings. Hoya is a mid-to-premium option with reputation for durability and optical clarity. This product category poses far lower chemical exposure risk than cookware, food storage, or textiles because contact is indirect (light passes through) and occasional (hand contact during cleaning or mounting). Category-wide, chemical hazards are minimal relative to other consumer products.
If you buy it
Store in a dry, temperature-stable environment to prevent coating degradation; avoid extreme heat or direct sunlight when not in use. Clean only with lens-specific cloths and solutions; avoid abrasive materials that could scratch coatings. No special disposal procedures are necessary for optical glass, but do not incinerate. Replace only if coatings become visibly damaged, delaminated, or if optical performance noticeably degrades (usually many years of heavy use).
What is not known about PFAS in this product?
- Basis
- Model estimate, 35% 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 Alpha II Lens Protection 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.