Paragon Water · Countertop Filters
5 Micron Activated Carbon Block Countertop Water Filtration System
Lower PFAS concern, but no public disclosure from brand.
Activated carbon filters are inherently low-risk materials for PFAS. Paragon Water provides no PFAS statement; verify materials directly with manufacturer if concerned.
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activated carbon block filter
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
This product uses an activated carbon block, a solid matrix of compressed coconut or bituminous coal carbon. Unlike granular carbon, the block format minimizes carbon dust escape into filtered water and reduces channeling (water bypassing the filter media). The 5-micron pore size targets sediment, chlorine, and some organic compounds but does not remove dissolved minerals or all bacteria. No ceramic, resin, or polymeric binder contaminants are publicly documented as leaching from Paragon's blocks.
The brand's record and disclosure
Paragon Water is a privately held US-based filtration company with no major recalls or safety alerts on record for this product line. The brand does not publicly disclose PFAS testing or removal claims on its product pages, which is typical for mid-tier countertop filter makers; larger brands (like Brita) also remain largely silent on PFAS testing. No third-party certifications (NSF, WQA) are prominently advertised, limiting independent verification of contaminant claims.
How it compares in its category
Activated carbon block countertop filters sit between pitcher filters (lower removal, cheaper) and reverse osmosis or multi-stage systems (higher removal, more complex). Paragon's 5-micron block is comparable to filters in the mid-range (e.g., Aqua Pure, PUR, basic Brita systems) in both performance and price. It avoids design flaws of some budget carbon systems, which use granular carbon that can shed particles; the block design is mechanically safer.
If you buy it
Replace the filter cartridge every 6-12 months or per manufacturer guidance; carbon effectiveness degrades as pores saturate. Store the unit away from direct sunlight and heat sources; activated carbon can off-gas or degrade if exposed to sustained high temperatures or UV. Do not assume this filter removes bacteria, viruses, or dissolved contaminants like heavy metals or PFAS; if your water quality is unknown, consider testing before purchase. Allow water to sit in the filter housing for 24 hours after installation to fully hydrate the carbon block.
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.”
Carbon dust or fines release
Activated carbon block filters can shed fine carbon particles during initial use or if the block cracks. Paragon does not publicly disclose fines testing; pre-filtering (running initial water through the system before drinking) minimizes this risk.
Bacterial or mold growth in housing
Any water filter housing left unused for days can harbor bacteria or mold on damp surfaces. This is a use-maintenance issue, not a manufacturing defect, but critical if the filter is stored or not regularly cycled.
Housing material leachables (polymer or adhesive)
No documented leaching from Paragon's filter housings; however, the brand does not disclose what polymers or adhesives are used. Standard food-grade polypropylene or acrylic are typical and generally safe, but specific material is not publicly stated.
Chlorine-associated byproducts not fully removed
Activated carbon blocks reduce chlorine taste and odor but may not completely eliminate chlorine-by-products (like trihalomethanes or haloacetic acids) that form in treated water. A 5-micron block is not rated for these compounds; multi-stage or NSF-certified systems are needed for comprehensive removal.
Filter cartridge clogging and bypass
If the cartridge clogs before replacement, water may bypass the filter entirely or flow through damaged sections. Users must monitor flow rate; significant slowdown indicates saturation and need for replacement.
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 Countertop Filters
ZeroWater
40-Cup Glass Water Filter Dispenser
borosilicate glass, plastic pitcher housing, ion-exchange resin cartridge
Lower concern on PFAS, but brand silence on cartridge composition is a missed transparency opportunity.
✓Bare metal or glass, no coating at all
ZeroWater
Culligan ZeroWater Technology 22-Cup Ready Water Filtration Dispenser
Plastic housing, activated carbon + ion-exchange resin filter media
Lower concern, but verify filter cartridge specs before relying on PFAS claims.
✓Brand claims PFAS-free (unverified)
LARQ
PureVis Pitcher
Borosilicate glass pitcher, activated carbon filter cartridge
Lower PFAS concern for the pitcher itself; verify filter cartridge sourcing if purchasing replacements.
✓Bare metal or glass, no coating at all
More countertop 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.