I think that a better question would be, "Why does my house smell like dog/cat?"
A couple of pets really shouldn't be making your house smell and they shouldn't have a bad smell, themselves.
Why does your basement smell like dog/cat? Are they going potty down there? Does the cat have a box and is it scooped at least once daily?
Or, is it the pets that smell?
If it's the dog/cat themselves that smell, well... Dogs need regular bathing, maybe every couple of weeks, in order to not develop an odor. Once they develop the dog odor, it takes a few baths followed by regular bathing in order to get rid of it. Sometimes, dogs develop an odor because they are having some sort of medical problem (e.g. skin issues, ear infections, anal gland issues, bad teeth, etc.) Cats do a lot of self-grooming and rarely smell or need a bath unless they are, for some reason (e.g. illness) not bathing themselves.
Either way, I think baking soda may only be part of the answer to keeping your basement smelling fresh.
Edited by: LOVE4KITTIES at: 7/27/2013 (04:26)