We arrive at a customer's home and she guides us from room to room during our pre-inspection. She points out a few areas on the carpet that have a noticeable stain and some even with a slight discoloration. Our customer explains that they recently got a puppy and it was a challenge to house-train him. Now that the little dog has learned to go outside, our customer is eager for us to return her carpet to its pre-puppy state.

Bacteria, viruses and protozoans are tiny microorganisms that exist virtually everywhere on Earth and are essential to life. The only places devoid of bacteria are the ones that have been manually sterilized by humans. While you cannot see bacteria with the naked eye, they are visible under a microscope. Carpets are one part of the home that's particularly likely to harbor potentially harmful bacteria, but careful cleaning can help reduce bacteria levels in your carpets and other areas.