Hydrogen Peroxide (H2O2) Generator - Decontaminating tissue culture lab with H2O2. (Sep/27/2009 )

Anyone know of a DIY recipe to generate hydrogen peroxide (H2O2) vapor for decontaminating a tissue culture lab or BSL-3 room? I know about the two main commercial generators and wont be having that amount of money in the next couple of months so I am looking for an alternative to the therwise hazardous formaldehide decon. Just about any hint will do.

be careful - at least look up the cautionary procedures/directions of current generators both in operation and application. you could search the patents to get the concepts