Look up PFAS in Wiktionary, the free dictionary.

PFAS or PFASs are per- and polyfluoroalkyl substances, a large class of synthetic chemicals.

PFAS or PFASS may also refer to:

• Oral allergy syndrome (pollen-food allergy syndrome)
• Phosphoribosylformylglycinamidine synthase, an enzyme
• Personal fall arrest system, in workplace safety
• Philadelphia Female Anti-Slavery Society

This disambiguation page lists articles associated with the title PFAS.
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