not realy sure

I bought this on the reviews, looked professional, used it, can't exactly be sure if all the fleas are XX, hope so. Was surprised at the residue left on the tile floor afterwards, not sure what to make of that. Tried to wipe it up as it made to floor slippery, not sure what the residue was. Didn't dry up after toweling floor, not sure what to make of that either. Would I use it again? not realy sure.

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