Formula H disinfectant is an effective and economical small pathogen killer that disinfects, clean, protects and deodorises. Effective against Canine parvovirus, canine viral hepatitis, Kennel cough, feline enteritis, canine distemper, rabies, leptospirosis, cat flu, viral haemoragic disease and organisms responsible for respiratory, enteric and other infections. 1 to 10 parts dilution rate for every use Always make sure you let the area dry before re-introducing the animal.