What's a nonoxynol 9 condom?

Surfactant : Nonoxynol9 is a surfactant. That means it breaks down surface integrity of fluids (like the membranes of sperm or vaginal lining) . It has spermicidal activity. But there is some question as to whether it increases risk of HIV in heavy users by an unknown mechanism. Who has declared it unsafe. Many condom manufacturers have discontinued using it in condoms.