Veterans Exposed to Toxic PFAS Act or VET PFAS Act This bill requires hospital care and medical services to be furnished for specified conditions to veterans and reservists who were exposed to perfluorooctanoic acid and other per- and polyfluoroalkyl substances (commonly referred to as PFAS) while serving on military installations. Family members of veterans and reservists who resided at these military installations are also eligible for hospital care and medical services under this bill. The bill also provides a presumption of service connection for veterans and reservists who were exposed to such substances. Under a presumption of service connection, specific conditions diagnosed in veterans are presumed to have been caused by the circumstances of their military service. Health care benefits and disability compensation may then be awarded.