Nesting brings out the urge to purge every toxin from the house at once, and the internet is happy to sell you a hundred products to do it. Most of that is noise. A small number of changes account for most of your real PFAS exposure during pregnancy, and the rest is rounding error.
So this is a checklist built by size of effect, not by how satisfying it feels to throw something out. Work down it in order. If you only do the first item, you have done most of the job. Everything below is based on published third-party testing, and we do not test products ourselves.
One honest note up front: this is information, not medical advice. Your OB or midwife should hear about anything here that worries you.
PFAS cross the placenta. Researchers have measured them in maternal blood, umbilical cord blood, and breast milk. ATSDR connects prenatal PFOA and PFOS exposure to pregnancy-induced hypertension, preeclampsia, and small reductions in birth weight, while also noting those outcomes happen in many pregnancies with no PFAS involved. The realistic risk from background exposure is a modest bump in odds, not a catastrophe. That framing matters, because it tells you to act calmly, not to panic-buy.
The single most useful fact for prioritizing: your exposure is dominated by what you take in every day for nine months. That points straight at water and food, not at the occasional contact with a treated product.
This is the item most checklists bury and it should be first. About 45% of US tap water has detectable PFAS, and unlike a pan or a jacket, you drink water every single day of the pregnancy.
Start by finding out what is actually in yours. Look up your ZIP code and you will see the PFAS, lead, and contaminant data for your specific water system, free, in about ten seconds. If PFAS shows up, a certified reverse-osmosis or NSF 53 filter removes roughly 99% of it. Our reverse-osmosis guide covers the specific systems.
If you drink bottled water during pregnancy, do not assume it is cleaner. Consumer Reports testing found PFAS in several popular brands, and one sparkling water tested highest of everything they checked. Our safest bottled water for pregnancy guide and the full bottled water brand ratings show which brands tested clean and which did not.
Retire nonstick pans that are scratched to the metal or made before 2015, when PFOA was still used in manufacturing. Cook on low to medium heat and never preheat an empty nonstick pan, which is when the coating can break down and release fumes. Cast iron, stainless steel, carbon steel, and true 100% ceramic have no PFAS in the cooking surface. The full breakdown is in our nonstick cookware and pregnancy guide and best PTFE-free cookware.
Grease-resistant food packaging was a major PFAS source for years, which is why the FDA secured a voluntary phase-out of grease-proofing PFAS from US food packaging by February 2024. Older stock and imported items can still carry it. The practical moves: skip microwave popcorn bags, avoid molded-fiber takeout bowls and grease-stained wrappers, and move leftovers into glass rather than reheating in the container. More detail in PFAS in food packaging.
Some coated flosses use PTFE for the slick glide, and independent testing has flagged organic fluorine (a PFAS indicator) in several. Switching to an uncoated or clearly PFAS-free floss is cheap and easy. See PFAS in dental floss for which types to look for.
This is where returns diminish, so do not stress over it. Stain-resistant, waterproof, and wrinkle-free treatments on carpet, upholstery, crib mattresses, and rain gear can contain PFAS. When you are buying new for the nursery, favor items labeled PFAS-free or untreated. You do not need to rip out existing carpet; new purchases are where a cheap default swap pays off.
Watch for long-wear and waterproof cosmetics, which are the categories most likely to contain intentionally added PFAS. Check ingredient lists for anything with fluoro, perfluoro, polyfluoro, or PTFE. This is a nice-to-have, not a priority, and it sits at the bottom of the list for a reason.
If you do nothing else on this list, filter your drinking water and stop reheating food in grease-resistant packaging. Those two cover the largest, most continuous exposure routes. Everything else is a bonus.
Filtering your drinking water. It is the exposure you repeat every day for nine months, so reducing it does more than any single product swap. Check your water first at your ZIP code lookup.
Not urgently. The highest-value changes are water and food packaging. For the nursery, just favor untreated or PFAS-free labeling when you are already buying new, rather than replacing things you already own.
Not automatically. Several bottled brands tested positive for PFAS in Consumer Reports testing, and filtered tap often costs a fraction as much. Compare on our bottled water ratings page.
Not on a useful timescale; PFAS clear slowly, over years. The realistic goal is to lower ongoing intake now so you are not adding to it during pregnancy.
Open the water lookup, type your ZIP, and see your actual numbers. That one step tells you whether you need a filter, which is the decision that matters most on this entire list. The rest you can work through at nesting pace.