The A Foam Authority is proud to announce that our organization has now included the new “green” non-fluorinated Class B Foam Concentrates as part of our education, training and research efforts. The information provided on the NFF/F3 foams will include the differences between Class A concentrates & F3 concentrates; the differences between the legacy (fluorinated) and the F3 foams; facts about legacy Class B concentrates; use of the new F3 foams and more.