GoPro · Waterproof Camera & Lens Protection Cases
PolarPro Circular Polarizer Filter for GoPro HERO
Glass and aluminum unlikely PFAS sources.
This circular polarizer combines glass optics with an aluminum frame and no known water-repellent coatings. Glass and aluminum normally don't require PFAS.
We flunk more products than we pass. This one earned its grade. How we grade
Material
Optical glass lens and aluminum alloy frame
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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What PolarPro Circular Polarizer GoPro HERO is made of, ingredients and materials
The PolarPro circular polarizer is constructed from optical-grade glass (the light-filtering element) mounted in an aluminum alloy frame. Optical glass is chemically inert and does not leach into food, water, or skin; aluminum frames are anodized or powder-coated to prevent oxidation. This is a passive optical device with no electronic components, coatings that degrade from heat cycling, or chemical treatments that off-gas. The filter sits between a camera lens and the environment, meaning direct human contact is minimal and indirect exposure through water or food is zero.
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.
Fragmentation or sharp edges (manufacturing defect)
If the glass is dropped or struck, the filter could shatter, creating sharp glass shards. This is a mechanical hazard, not a chemical one, and is manageable through careful handling and storage in padded cases.
What’s reassuring
Base material not linked to PFAS
The main material recorded for this product is not one associated with PFAS.
Optical glass clarity/durability
Optical-grade glass does not degrade into harmful particles under normal use; no reports of glass breakdown or microparticle shedding in circular filters.
Aluminum frame corrosion and leaching
Anodized or coated aluminum in camera filters does not typically leach into food, water, or skin due to the protective oxide layer and the product's use case (no liquid or heat contact).
Coating degradation (if present)
Circular polarizer coatings are optical treatments (not chemical colorants or flame retardants) and do not off-gas or degrade into air contaminants during normal storage or outdoor use.
Heavy metals
Optical glass used in professional filters is formulated to strict purity standards; no arsenic, cadmium, or lead contamination is documented in this product category.
Source, FDA ↗How is this PFAS grade calculated?
The brand's record and disclosure
GoPro does not publish material safety data sheets or chemical composition disclosures for its camera accessories, which is typical for the consumer electronics accessories industry. No product recalls, contamination reports, or health complaints are on record for PolarPro circular filters or GoPro-branded filter lines. GoPro's parent company remains silent on PFAS use in accessory manufacturing, though optical glass and aluminum are not known primary sources of PFAS in consumer goods.
How it compares in its category
Circular polarizer filters across manufacturers (B+W, Hoya, Tiffen, Marumi) use nearly identical glass and metal construction, making safety profiles equivalent. Unlike some budget filter brands that may use lower-grade glass or cheaper coatings, PolarPro is recognized for optical quality and durable framing. This category of product poses no meaningful safety differentiation compared to alternatives.
If you buy it
Store the filter in a dry location to prevent mineral deposits or condensation on glass surfaces; clean only with microfiber cloths and lens cleaner to avoid scratching the coating. Do not expose the filter to extreme temperature swings (car dashboards in direct sun) as rapid expansion can stress the aluminum frame, though this is a durability issue, not a safety one. Replace if the glass becomes permanently cloudy, the frame shows corrosion, or the polarizing effect visibly weakens (years of UV exposure). No special disposal precautions are required; the filter can be recycled as glass and metal.
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
- GoPro has made none
Formulations change between production runs, so check the current label. How we grade.
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.