Martin House Protector is an all-natural enzyme cleaner for all types of birdhouses.Provides a healthy brood habitat. Cleans away parasites, bird droppings and organic contaminants. Stops cross bacterial contamination. Non-toxic, all natural enzymes. Simply spray into the birdhouse and the enzymes begin working to breakdown unwanted proteins, carbohydrates, fats and parasites that build up. Martin House spray eliminates lice, fleas, and mites. 16 oz. spray bottle.