Get rid of odors instantly, and most importantly, safely with the PureAyre Odor Eliminator Dog, Cat, Bird & Small Animal Refill. A pure and powerful all-natural formula, it uses powerful enzymes that break apart the molecular bonds of odor-causing compounds—meaning smells are permanently removed when those bonds are broken. And because it’s totally free from chemicals, bacteria or alcohol, it’s safe enough for all pets and even humans with asthma or allergies. You can even spray it directly on your dog or family member! The 100% food grade ingredients get rid of tough smells like cat urine and even skunk, and it actually cleans the air and makes it easier to breathe.