Check for odor coming from the feet as well.
The breath odor may be from the rawhides or rope toys, try Veggie Dents instead.
Dermoscent is a topical spot on product which contains fatty acids and essential oils and it may be helpful to reduce the doggy body odor.
Face folds are clean and clear, ears are clean and clear, anal sacs have been drained and teeth are clean and brushed daily. So what else can it be?
I am also having a problem with breath odor. It started out with the pug, then we got a mini schnauzer in december 2009 and now she has it and now we just got a Border Collie who is on a totally different food because she is only 4 months old and now her breath is beginning to smell. All 3 dogs get there teeth brushed daily and baths every 2 weeks.
Could it be because all 3 dogs are eating grass all day, they just love eating it. And no it does not make them sick.There are no plants in the yard.
Could it be there ropes, or toys or rawhides they chew on?
I recommend veterinary examination. The odor may be coming from infected face folds or ears, anal sacs, or dental disease.