Roger Seheult, MD of MedCram explains forever chemicals such as PFAS, PFOA, PFOS, and BPA

The Hidden Threat in Your Drinking Water

PFAS—per- and polyfluoroalkyl substances—are synthetic chemicals found in everything from non-stick cookware to firefighting foam. But the most alarming discovery? They're in your tap water.

Known as "forever chemicals" because they don't break down naturally in the environment or the human body, PFAS accumulate over time. Recent studies reveal that over 90% of Americans already have detectable levels of PFAS in their bloodstream.


What Are PFAS? 

Attribute Detail
Full name Per- and polyfluoroalkyl substances
Commonly known as "Forever chemicals"
Key property Carbon-fluorine bond—one of the strongest in chemistry—makes them virtually indestructible
Sources Non-stick cookware, stain-resistant fabrics, food packaging, firefighting foam, industrial discharge
Route of exposure Primary: drinking water; secondary: food, dust, consumer products
Bioaccumulation Builds up in blood, kidney, liver, and breast milk over years

The Health Risks You Need to Know

Prolonged PFAS exposure has been linked to serious health concerns—supported by EPA, CDC, and peer-reviewed studies:



Health Risk Specific Concerns
Increased cancer risk Kidney cancer, testicular cancer, thyroid cancer
Immune system suppression Reduced vaccine effectiveness, increased infection risk, autoimmune disorders
Hormonal disruption Thyroid disease, reproductive issues, decreased fertility
Developmental delays Low birth weight, impaired growth, learning difficulties in children
Liver damage Elevated cholesterol, increased liver enzyme levels, non-alcoholic fatty liver disease
Endocrine interference Disruption of estrogen and testosterone regulation

"PFAS are a public health crisis unfolding in real time."  EPA Administrator (2024)


Regulatory Context – What the EPA Says



Agency Action / Standard
EPA (2024) Finalized National Primary Drinking Water Regulation (NPDWR) for PFAS
Maximum Contaminant Levels (MCLs) PFOA: 4.0 parts per trillion (ppt) ; PFOS: 4.0 ppt; PFNA, PFHxS, GenX: 10 ppt
Hazard Index Combined limit for mixtures of PFAS
Enforcement deadline 2027–2029 for public water systems
Current status Thousands of U.S. water systems still exceed safe levels; many lack PFAS testing entirely

The Gap – Why Municipal Treatment Isn't Enough



Issue Explanation
Limited testing Many utilities do not yet test for PFAS
Treatment gaps Standard coagulation and sand filtration do not remove PFAS
Legacy contamination Military bases, industrial sites, and airports remain sources
Point-of-use matters PFAS can leach from plumbing or enter between the treatment plant and your tap

Bottom line: Even if your city reports "safe" water at the plant, your home's pipes or aging infrastructure could introduce PFAS before it reaches your glass.


How GlacierFresh® Filters Remove PFAS

Not all water filters are created equal. GlacierFresh uses advanced reverse osmosis (RO) and activated carbon filtration technology specifically engineered to capture and remove PFAS molecules—including both long-chain (PFOA, PFOS) and short-chain (PFBA, GenX) variants.


Our Certified Protection – Technical Specifications 

Feature Detail
Certification NSF/ANSI Standard 53 (health effects) and Standard 58 (RO systems)—independently tested for PFAS reduction
PFOA/PFOS removal Up to 99%
Activated carbon block Traps long-chain and short-chain PFAS compounds effectively
RO membrane Pore size 0.0001 microns—filters particles at molecular scale
Filtration stages 3–5 stages depending on model (sediment → carbon → RO → post-carbon → remineralization)
Remineralization Adds back healthy minerals (calcium, magnesium) for balanced pH and great taste
Contaminants reduced (total) PFAS + chlorine, lead, mercury, pesticides, VOCs, and over 1,000 other contaminants

How PFAS Removal Works (Simple Analogy)

Think of PFAS molecules like tiny, greasy particles that slip through most filters. Our systems use a two-step trap: activated carbon acts like a sponge that grabs the larger PFAS molecules, while the RO membrane—with pores 100,000× smaller than a human hair—catches the tiny ones that make it through. Together, they catch over 99% of these chemicals in every drop.


Choose Your PFAS Protection – Product Matrix 

For Your Home



System Best For Key Advantage
Under-Sink RO Families, homeowners Permanent dedicated faucet; maximum filtration volume; whole-kitchen protection
Countertop RO Renters, small spaces No installation; portable; moves with you; same RO performance
Gravity 5-Stage Carbon Off-grid, emergency prep No electricity; multi-stage carbon for PFAS reduction; backup-ready

On the Go



System Best For Key Advantage
Filter Pitcher Everyday hydration Affordable; fridge-friendly; NSF-certified PFAS reduction
Portable Filter Bottle Gym, office, travel Certified filtration in a reusable bottle; BPA-free

Why Families Trust GlacierFresh



Trust Factor What It Means
 Certified Performance Third-party tested to NSF/ANSI 53 & 58 standards
 Premium Quality Food-grade 304 stainless steel; BPA-free components throughout
 Easy Maintenance Simple filter replacements with clear change indicators on select models
 Exceptional Value Lower cost per gallon than bottled water—saves up to 80% over time
 Expert Support Dedicated customer care, installation guidance, and filter reminder service

PFAS Comparison – GlacierFresh vs. Standard Pitchers 



Feature Standard Pitcher GlacierFresh RO System
PFAS removal Partial (short-chain often escapes) Up to 99% (both long & short chain)
NSF 53 certification Rare ✅ Yes
Heavy metal removal Some ✅ Comprehensive
TDS reduction None Up to 95%
Filter lifespan 1–3 months 6–12 months
Cost per gallon ~$0.15–$0.30 ~$0.06–$0.12

Actionable Steps – What You Can Do Today 

  1. Check your water – Contact your utility for PFAS test results or use a certified home testing kit.

  2. Know your risk – Homes near military bases, airports, industrial sites, or older plumbing are at higher risk.

  3. Choose certified filtration – Look for NSF/ANSI 53 or 58 certification specifically for PFAS.

  4. Install GlacierFresh – Protect your family with proven, point-of-use technology.

  5. Stay informed – PFAS regulations and health advisories are evolving rapidly.

FAQ

PFAS (per- and polyfluoroalkyl substances) are synthetic chemicals with a carbon-fluorine bond so strong that they resist degradation in the environment and the human body—hence the nickname "forever chemicals."

No. Boiling actually concentrates PFAS, increasing the concentration of these chemicals. Only certified filtration—specifically activated carbon with ion exchange or reverse osmosis—can effectively reduce PFAS levels.

The EPA has set Maximum Contaminant Levels (MCLs) of 4.0 parts per trillion (ppt) for PFOA and PFOS individually, with combined hazard index limits for PFNA, PFHxS, and GenX. These are the strictest standards to date.

Yes. Our advanced activated carbon block combined with RO membrane technology is engineered to capture both long-chain (PFOA/PFOS) and short-chain PFAS compounds, including GenX, effectively reducing them to below detectable limits in certified testing.

Filter lifespan varies by model and usage—typically 6–12 months for carbon stages and 1–2 years for RO membranes. Each system includes clear indicators or replacement schedules to ensure consistent protection.

Bottled water is not guaranteed PFAS-free. Some brands have tested positive for PFAS. GlacierFresh point-of-use filtration gives you direct control over what's in your glass.

Yes. Our multi-stage systems reduce chlorine, lead, mercury, pesticides, VOCs, sediment, and over 1,000 other common water contaminants in addition to PFAS.

More Related Articles

Soft Water vs Hard Water for Car Washing: What’s the Real Difference?
Blog Icon

Soft Water vs Hard Water for Car Washing: What’s the Real Difference?

Soft water and hard water can produce very different car washing results. This guide compares their effects on cleaning performance, water spots, soap effici...

Why Does Filtered Water Taste Better? The Science Behind Pure Water
Blog Icon

Why Does Filtered Water Taste Better? The Science Behind Pure Water

🔹 Quick Answer Filtered water usually tastes better because filtration removes or reduces substances that affect flavor and odor—such as chlorine, sulfur co...

Is Water Really Wet? The Science Behind Water Molecules, Surface Tension & Pure Water
Blog Icon

Is Water Really Wet? The Science Behind Water Molecules, Surface Tension & Pure Water

🔵 Quick Answer Is Water Really Wet? Scientifically speaking, water itself is not considered “wet.” Wetness describes the condition where a liquid (like wate...