What is the significance of halogen free epoxy in capacitors and also mno2 surface mount. How does the capacitor functioning improve / get affected??

 

What is the significance of halogen free epoxy in capacitors and also mno2 surface mount. How does the capacitor functioning improve / get affected??

Associated with other issues. "Halogen free" is commonly associated with low out-gassing for vacuum or controlled atmosphere or optics (satellite cameras). Also, medical ventilation systems, or anything where halogenated hydrocarbons would cause an issue - even corrosion.