Ok, take you helmet, and get a paper bad, throw some ARM and HAMER in the bag, and then open the small box of A&H, set in the sack, where when you put the helmet in the bag, the helmet will be a "shell" over the box of A&H. (You may also add 2 pr 3 newspaper pages for extra absortion.)C lose the bag and leave set for 3 or so days, the smell will be gone, should be anyway.