Well, bad smells in carpet can usually be traced to pet urine or some sort of food stain – or, more specifically, the bacteria living off the stains that cause the odor. These little guys eat the staining material, breed on it, and product that terrible smell. Thankfully, we here at Oxi Fresh have a solution: Odor Destroyer! This amazing product is an bio-enzyme that will quite literally eat the bacteria – eliminating the cause of the odor.