Tough on Dirt, Gentle on the Earth With Bac-Out® Technology. Cleans & Deodorizes. Safe to Use in Homes With Children & Pets. Kind to Those With Chemical Sensitivities. No Artificial Fragrance, Colors or Preservatives. Rapidly Biodegrades. Naturally Cleans & Deodorizes Any Hard Surface Floor Our everyday cleaning choices affect our health, the health of our families, and the health of our planet. B iokleen™ products are concentrated in order to leave the smallest footprint on the environment. Safe f.