Do CAT waterproof phone cases have PFAS?
CAT waterproof phone cases average 85 out of 100 on PFAS Authority's PFAS and toxin screen across the 4 CAT waterproof phone cases graded as of October 2026, level with the 85 out of 100 median for the 31 other waterproof phone cases brands graded alongside it.
CAT waterproof phone cases average Excellent on our four-band scale. 4 of the 4 we graded are worth buying. That is above 52% of the waterproof phone cases brands we grade.
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
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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.
CAT waterproof phone cases worth buying Good or better, best-graded first
- Plastic (polycarbonate or TPU)
- We found no PFAS statement from the brand
- Microplastics. Over years of use, rubber gaskets and silicone plugs can crack, fragment, or leach particles…
3 hazards checked on this product, all on its full breakdown.
- Unspecified plastic/polymer
- We found no PFAS statement from the brand
- BPA & bisphenols. The plastic resin is not named; flexible polymers like TPU or PVC commonly contain…
4 hazards checked on this product, all on its full breakdown.
- TPU/silicone blend
- We found no PFAS statement from the brand
- Heavy metals. The printed artwork on the case surface may contain pigments with cadmium, lead, or other heavy…
3 hazards checked on this product, all on its full breakdown.
- TPU or silicone dual-layer
- We found no PFAS statement from the brand
- Silicone or TPU degradation and leachates. Over years or with UV exposure, silicone and TPU can soften…
3 hazards checked on this product, all on its full breakdown.
Better waterproof phone cases from other brands
Graded higher than the CAT average of 85.
- Flax fiber and plant-based resin blend, compostable
- A third party reports verifying it as PFAS-free
- Coating degradation and durability over time
2 hazards checked on this product, all on its full breakdown.
- plant-based bioplastic (flax and other plant fibers)
- A third party reports verifying it as PFAS-free
- Thermal degradation and warping
3 hazards checked on this product, all on its full breakdown.
- Plant-based bioplastic (compostable blend)
- A third party reports verifying it as PFAS-free
- Bioplastic degradation and microparticle shedding
The same question, asked of the other waterproof phone cases brands
Best average grade first. CAT averages 85.
See every CAT product we grade on the CAT brand page, or the full waterproof phone cases ranking.