According to bhaufschild, cat urine smell is a major problem in houses these days. in this video he demonstrates how to get rid of the cat urine smell. One of the best is a product called odor fix plus which extracts the cat urine smell out of the house completely. To use this product you need a bucket, a watering can, a brick and water. it is mixed as 10 parts warm water and 1 part of the product. before you use the product you will have to smell out the urine to specific areas where the cats urinate such as where the wall meets the floor, room corners etc otherwise it will not work. it is sprayed and needs a few days to work. to maximize the effect a plastic sheet is placed over the sprayed area and held in place with bricks. The enzymes work away at the enzyme molecules, the smell gets extracted and your done! this product needs quite some time to work and can sometimes take up to six days!