1-Hexanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-, compd. with 2,2'-iminobis[ethanol] (1:1)

Manufacture/use of AFFF firefighting foams, chrome-plating mist suppressants, and stain-/water-repellent treatments; in water it dissociates to PFHxS [1].

Drinking contaminated water near airports, military sites, plating shops, or PFAS facilities; eating food or dust with PFAS; workplace contact via air/skin [1][3].

PFHxS has a long human half-life (~8 years) and studies associate exposure with higher cholesterol, liver enzyme changes, reduced vaccine response, and thyroid/developmental effects [1][3].

Residents with PFAS-contaminated water; firefighters and plating/PFAS-industry workers; pregnant people, fetuses, and infants (PFHxS crosses the placenta and is found in breast milk) [1][3].

Use alternative water or NSF-certified PFAS filters (activated carbon or reverse osmosis), follow local advisories, reduce indoor dust (wet-wiping, HEPA vacuum), choose PFAS-free products when possible, and use workplace PPE/hygiene. Breastfeeding has many benefits; discuss concerns with your clinician [1][2][3].