* Based on studies conducted by independent laboratories of Chem-Dry's HCE (Hot Carbonating Extraction), P.U.R.T. (Pet Urine Removal Treatment), Granite Countertop Renewal, and Tile, Stone & Grout cleaning processes. Allergens tested were dog and cat dander and dust mite allergen. Pet odour results based on testing with the most common odour sources found in dog and cat urine. Pet urine bacteria results based on Chem-Dry's HCE cleaning process and a sanitizer, combined with P.U.R.T. All bacteria results include use of sanitizer. Figures are an average across multiple tests.