If you're reading this, you've already started thinking about it. That's not paranoia. That's parenting.
The Centers for Disease Control and Prevention says there is no known safe level of lead in a child's blood. The EPA recommends point-of-use filters certified to NSF/ANSI Standard 53 for lead reduction. The American Academy of Pediatrics keeps the recommended action level for children at 1 part per billion — far stricter than the federal threshold for utilities. The authorities are doing the convincing for us.
This guide walks through what's actually worth filtering for a child in the house, what pediatric and public-health agencies say specifically, and how the Pure XP pitcher implements that guidance. Every removal percentage cited comes from independent third-party lab testing against the NSF/ANSI standard listed alongside it.
The short list
Four contaminants worth filtering when there's a baby in the house.
Pediatric and public-health authorities focus on a handful of contaminants for households with young children. Here's the short list, what each one is, why it matters specifically for kids, and the Pure XP test data on what filtering actually does.
Because lead has no safe level for children.
The number one priority for households with children · EPA + CDC + AAP all agree
Why it matters for kids
Lead is the contaminant pediatric authorities care about most. The EPA and CDC agree there is no known safe level of lead in a child's blood. The AAP recommends keeping levels below 1 ppb — over 14 times stricter than the federal action level for utilities. Formula-fed infants are at higher exposure risk because they consume large volumes of water relative to their body weight.
How it gets into your water
Lead almost never comes from the source water. It leaches in after water leaves the treatment plant — through aging service lines, brass fixtures, and household plumbing soldered before 1986. Boiling doesn't remove lead. Filtering does, if the filter is certified to NSF/ANSI Standard 53.
99.94%
Pure XP lead reduction. Independently lab-tested against NSF/ANSI Standard 53 — the standard the EPA specifically recommends for lead reduction.
Source: U.S. EPA Basic Information about Lead in Drinking Water; CDC Childhood Lead Poisoning Prevention; AAP Lead Exposure Policy.
Because forever chemicals don't break down — in water or in the body.
Recent studies suggest infants are more vulnerable than adults
Why it matters for kids
A 2025 study published in Environment International found that infants are more vulnerable than mothers to PFAS exposure, and proposed new minimum risk values specifically for infants. Earlier research has linked maternal PFAS exposure to reduced birth weight and developmental outcomes including delayed communication. Up to 94% of an infant's PFAS intake is estimated to come through breastfeeding, which means reducing maternal exposure during pregnancy and lactation matters.
How it gets into your water
PFAS reaches drinking water through industrial discharge, firefighting-foam runoff, and landfill leachate. A 2023 USGS study estimated that at least 45% of U.S. tap water contains one or more PFAS compounds. The EPA finalized a federal limit of 4 parts per trillion for PFOA and PFOS in 2024, but utilities have until 2031 to meet it.
99.8%
Pure XP PFAS reduction. Independently lab-tested against NSF/ANSI P473 (PFOA & PFOS).
Source: USGS Environment International (2023); peer-reviewed PFAS-in-breast-milk studies, 2024–2025; EPA PFAS NPDWR (April 2024).
Because nanoplastics are now small enough to cross into the bloodstream.
A 2024 PNAS study found ~240,000 plastic fragments per liter of bottled water
Why it matters for kids
A 2024 Columbia and Rutgers study published in PNAS identified an average of 240,000 plastic fragments per liter of bottled water — roughly 90% of which were nanoplastics small enough to cross from the gut into the bloodstream. The simplest practical answer is to drink less bottled water. Filtered tap water at home contains far fewer plastic particles than bottled water and addresses the source most parents can actually control.
How it gets into your water
Through plastic packaging (especially bottled water), plastic plumbing components, and degradation of plastic waste in source watersheds. Customer cohort data shows 80% of Epic buyers list plastic as the material they trust least for drinking water.
99.6%
Pure XP microplastics reduction. Independently lab-tested against NSF/ANSI Standard 401 (Emerging Contaminants).
Source: Qian et al., "Rapid single-particle chemical imaging of nanoplastics by SRS microscopy," PNAS, January 2024.
Because the EPA's legal limit isn't the same as the health-protective limit.
Studies link elevated maternal exposure during pregnancy to reduced birth weight
Why it matters for kids
Trihalomethanes (THMs) are chemicals that form when chlorine reacts with naturally occurring organic matter in water. Multiple peer-reviewed studies have linked elevated maternal exposure to THMs during pregnancy with reduced birth weight and small-for-gestational-age outcomes. The EPA's legal limit for total THMs is 80 parts per billion, but the EWG's 2025 database update shows tens of thousands of U.S. water systems delivering THMs at levels above what many health scientists consider protective.
How it gets into your water
THMs are a side effect of chlorine disinfection. Source water with more organic content (rivers, certain reservoirs) tends to produce more THMs at the treatment plant. Filtering at the tap is the simplest way to reduce concentrations in your glass to a level closer to what scientists consider health-protective.
99.4%
Pure XP trihalomethane reduction. Independently lab-tested against NSF/ANSI Standard 53 (Health Effects).
Source: U.S. EPA Stage 2 Disinfectants and Disinfection Byproducts Rule; EWG Tap Water Database 2025 update.
Frequently asked questions
Is tap water safe for baby formula?
Public health agencies generally consider U.S. tap water safe for formula prep, but they also recommend additional precautions — particularly around lead. The EPA recommends using a point-of-use filter certified to NSF/ANSI Standard 53 for lead reduction. The American Academy of Pediatrics recommends keeping lead levels below 1 ppb for children, far stricter than the federal action level. Filtering at the tap is the simplest way to meet that recommendation in a home that wasn't built with brand-new plumbing.
Should I boil water instead of filtering it?
Boiling water kills bacteria, but it does not remove lead, PFAS, or most other chemical contaminants. The EPA notes that boiling can actually concentrate lead because water evaporates while the lead remains behind. For chemical-contaminant reduction, filtering at the tap with a certified filter is the recommended approach. Boiling and filtering address different problems and aren't substitutes for each other.
What about during pregnancy?
Multiple 2024–2025 peer-reviewed studies have linked maternal PFAS exposure during pregnancy to reduced birth weight and developmental outcomes. The Centers for Disease Control and Prevention also lists lead exposure during pregnancy as a known risk factor. Filtering tap water during pregnancy reduces both exposures with one product, and the same filter continues to work after the baby arrives.
When does my baby actually need filtered water?
There's no single age — it depends on what you're using the water for. Formula prep is the highest-volume water exposure most infants will have, so it's where pediatric authorities focus their guidance. After that, water for cereals, purees, sippy cups, and direct drinking all matter. Many parents make the simple decision to filter all the water that touches their child's food and drink rather than tracking which uses qualify.
How do I know if my home has lead pipes?
Most lead in U.S. drinking water comes from service lines and plumbing — not the source water — and homes built before 1986 are most likely to have lead solder. The EPA's Lead and Copper Rule requires utilities to identify and replace lead service lines, but the timeline runs into the 2030s. The CDC notes that utility tests can underreport household lead because they sample under ideal conditions. The reliable way to know your tap is lead-free is to filter at the tap.
Is bottled water better for babies than filtered tap water?
A 2024 Columbia and Rutgers study published in PNAS found roughly 240,000 plastic fragments per liter of bottled water — most of them nanoplastics small enough to pass into the bloodstream. Bottled water is also more expensive and less convenient than filtering. The simpler approach for most families is to filter tap water at home with a pitcher tested against multiple NSF/ANSI standards.
Does the Pure XP pitcher remove what authorities recommend filtering?
Yes. The Pure XP filter is independently lab-tested against NSF/ANSI Standard 53 (the standard the EPA specifically recommends for lead reduction), reducing lead by 99.94%. It's also tested against NSF/ANSI P473 for PFAS reduction (99.8%) and NSF/ANSI 401 for emerging contaminants including microplastics and pharmaceuticals (99.6% microplastics). Pure XP is NSF certified to Standard 42 for chlorine reduction.
Where is Pure XP made?
In our own facility in Palmetto, Florida. Epic is vertically integrated — manufacturing, quality control, and assembly all happen in-house, with filtration media sourced from the U.S. and Japan.
