Recently had 7 dogs (spitz, lab, 3 boxers, maltese, & pom) in the house using the doggie door. That meant lots of pet odors, not just the "accidents". Bought it, used it, loved it! Only downside is cannot be used in carpet cleaner, so several light spots. Thinking I'll buy a gallon & pretreat all over with a garden sprayer. We need a formula for our machines.