TECHNOLOGY FOCUS - BIOLOGY - Preferred Microorganism: The dormant bacteria are sporulated forms of one or more strains of the genera Bacillus.Preferred Method: The dormant bacteria are applied to the carpet at 10 power 6 - 10 power 8 cells per gram, preferably 10 power 7 cells per gram of carpet fiber.Preferred Composition: The dormant bacterial preparation (% of total bacteria) comprises 20-60, preferably 40B. licheniformis; 10-30, preferably 20B. parteurii; 10-30, preferably 20B. laevolacticus; 10-30, preferably 20B. amyloliquefaciens. It further includes one or more stain-blocking chemicals. The bacterial preparation contains 0.1-20 wt.%, preferably 0.25 - 20 wt.% stain blocker chemicals to result a treat rate, based on the weight of the carpet. It further includes one or more anti-soil fluorochemicals.    TECHNOLOGY FOCUS - POLYMERS - Preferred Chemicals: The stain-blocking chemicals are sulfonate phenol formaldehyde condensate polymer, sulfonated naphthol formaldehyde condensate polymer or hydrolyzed vinyl aromatic maleic anhydride polymer. SPECIFIC COMPOUNDS - The dormant bacteria are Bacillus licheniformis, Bacillus pasteurii, Bacillus laevolacticus or Bacillus amyloliquefaciens.    EXAMPLE - The carpet was conditioned at 50% humidity at 75 degrees F. Then it was sprayed with a suspension of sporulated forms of Bacillus species (40% B. licheniformis, 20% B. pasteruii, 20% B. laevolacticus, 20% B. amyloliquefaciens) which was prepared in an aqueous solution of % ZONYL 7044 fluorochemical in distilled water at 10 power 8 spores/mL. The bacterial suspension was applied to the carpet in an aerosol form at a treatment rate of 10 power 7 spores/g of carpet. The carpet was dried at 290 degrees F in an oven in a humidity controlled chamber. This carpet was compared with the untreated carpet by scanning electron microscopy. The treated carpet fiber has a large number of Bacillus spores adhered to the surface of the fiber with very little, if any naturally occurring bacteria or other microorganisms present in the sample, while the untreated carpet fiber contains a naturally occurring bacteria and other microorganisms.