Chemical Factors Fungistatic fatty acid in sebum ·Low pH(3-5)of skin Lysozyme in perspiration,tears,saliva,and tissue fluids Low pH(1.2-3.0)of gastric juice Transferrins in blood find iron NO inhibits ATP production• Fungistatic fatty acid in sebum • Low pH (3-5) of skin • Lysozyme in perspiration, tears, saliva, and tissue fluids • Low pH (1.2-3.0) of gastric juice • Transferrins in blood find iron • NO inhibits ATP production Chemical Factors