Biokleen Bac-Out Stain & Odor Remover vs Zero Odor Pet Odor Eliminator

Buy Biokleen Bac-Out if you need to clean the stain itself, not just the smell. Its live enzyme cultures keep working on organic residue in carpet, laundry and upholstery, and the 128 oz bottle suits repeated pet and kid messes. Buy Zero Odor if the odor lingers after the stain is gone, such as old urine in a couch or a room that smells of dog. It is a spray deodorizer that neutralizes scent molecules and leaves no fragrance, but it does not clean soil. Owners rate Zero Odor slightly higher on a smaller sample; Bac-Out has more ratings and a solid record.

• Choose the Biokleen Bac-Out if you want an enzyme cleaner that lifts fresh pet, food and laundry stains and keeps breaking down residue after you apply it.
• Choose the Zero Odor if the stain is already gone but the smell is not, and you want an unscented spray for carpet, bedding and furniture.