We had same experience with a neighbor's cat spraying on our porch.Thank heaven it was outside where we could use the hose.
The neighbor finally gave the cat to a farmer,after cat started spraying her sofa & a footstool.They repaced both pieces of furniture,but said in damp,rainy weather, they could still smell it.
Originally Posted by Jeanniejo
I don't think it ever comes out of a rug and also penetrates the floor under the rug. The people that had our house before us had cats and we had to remove the carpeting and replace some of the floors to get rid of the odors. We tried a LOT of things that said they got rid of odors but it always came back.