I try to keep my negs clean. I rarely used compressed air nor canned air. If I have to clean my negs, I have this ear syringe that I've been using for years and it works well. http://www.drugstore.com/products/pr...LAID=153337877
A wide camel's hair brush works great also. I like simple solutions. I'm also thinking of putting one of those $10 ionizers to remove static from my film.