We determined volatile PFCs in indoor air of residences and schools in Germany.
We presented for the first time data for schools.
Daily non-dietary exposures were in the lower ng/kg b.w. for children.
Inhalation was the dominant intake pathway for fluorotelomer alcohols (FTOHs).
Only minor amounts of PFOA originate from 8:2 FTOH using non-dietary intake data.