Sharp · Refrigerator Filters
Puritas Refrigerator Water Filter SJF2955KS
Lower concern, but manufacturer silent on PFAS content.
Refrigerator water filters typically use activated carbon, which is inherently PFAS-free. Sharp provides no PFAS disclosure or third-party verification for this model.
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Activated carbon filter media
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Why this grade
Safe base material
Made from a material with no inherent PFAS use (ceramic, mineral, or natural fiber).
No PFAS disclosure
No public statement about PFAS in this product.
The full breakdown
What it's made of and why it matters
The SJF2955KS uses activated carbon as its primary filtration medium, a material that adsorbs chlorine, odors, and some organic compounds through porous structure rather than chemical reaction. The housing is typically food-contact plastics (polypropylene or similar). Activated carbon itself is inert and poses no leaching risk; the concern lies only in housing material and filter maintenance, not the carbon media.
The brand's record and disclosure
Sharp provides no public disclosure on PFAS content or testing for this filter line, despite growing industry transparency. The company has not faced established recalls or safety controversies tied to refrigerator filters. Sharp's refrigeration products meet FDA food-contact standards, but specificity on per-product PFAS mitigation is absent from available documentation.
How it compares in its category
Refrigerator filters are largely equivalent in construction: activated carbon housed in plastic. The SJF2955KS sits at mid-range pricing and availability as a OEM-compatible filter. Premium alternatives (Aqua-Pure, genuine manufacturer filters) rarely disclose PFAS either; this product's risk profile is typical for the category, not elevated or superior.
If you buy it
Replace every 6 months or per manufacturer guidance to prevent bacterial biofilm accumulation inside the cartridge. Do not operate above manufacturer water pressure limits (typically 100 psi) to avoid housing stress cracking. Store in a dry place before installation to avoid mold growth. Flush the first 5-10 gallons of water after installation to clear any carbon dust.
Beyond PFAS: other things we checked
Established hazard classes for this product type, assessed from public information. These never change the PFAS grade; a Likely flag caps the Verdict at “Buy with care.”
Bacterial growth in filter media
Activated carbon filters can harbor bacterial colonies if left in service beyond recommended replacement intervals or if water supply is already contaminated. Standard 6-month replacement mitigates this.
Plastic housing leaching from polypropylene
Polypropylene housing is food-contact compliant and does not leach BPA, phthalates, or other documented toxins at typical refrigerator temperatures (35-40F). No recalls or testing issues are on record for this model.
Carbon dust release
New filters may shed activated carbon particles into water during first use. Flushing before consumption eliminates this minor inconvenience; carbon is inert if ingested in trace amounts.
Pressure-induced housing failure
Exceeding rated water pressure can crack polypropylene housing, potentially exposing interior surfaces or allowing bypass. This is user-preventable through pressure monitoring.
What we don’t know
This grade is a model-based estimate from public materials, coatings, and brand disclosure at 72% confidence. It is not a lab result.
No independent PFAS lab test is on record for this exact product. A lab test could move the score in either direction.
The brand has not made a specific, verifiable PFAS-free statement, so part of this score reflects that missing disclosure rather than a confirmed material.
Formulations and coatings change between production runs. Always check the current label before buying.
Safer alternatives in Refrigerator Filters
Kenmore
9690 Refrigerator Water Filter 1-Pack, Nsf/wqa/iapmo Certified, Reduces 99% Chlorine & Odor, BPA-Free, Replacement for 46-9690 469690 Lt700p
activated carbon filter cartridge
Lower-concern water filter; carbon-based design unlikely to contain PFAS, but Kenmore makes no explicit PFAS disclosure.
✓Verified PFAS-free by a third party
Kenmore
Pureline Filter Compatible with Whirlpool Everydrop Filter 1
Activated carbon and fiberglass filter media
Lower concern for PFAS; standard cartridge filter with no known PFAS-bearing materials, but brand offers no transparency.
✓Bare metal or glass, no coating at all
Clearly Filtered
Water Pitcher Replacement Filter 3-Pack
Activated carbon and ion-exchange resin filter media
Lower-concern option; activated carbon filters are standard PFAS-reduction media, but verify pitcher durability and actual tested removal rates independently.
✓Brand claims PFAS-free (unverified)
More refrigerator filters 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.