Does huffing void a life insurance policy?

Read your insurance policy. A normal life insurance policy would pay the full benefit no matter what after the 2 year incontestable period. The only things that would cause the benefit to be denied during the first two years is if they had lied on the application or if they did not disclose something important on the application. The application will ask about illegal drug use and I'm sure they answered no. If they started using drugs or paint after the application was dated no problem.