Deb Oust 3-in-1 Surface Spray Deb Oust 3-in-1 Surface Spray is a hard surface disinfectant, soft surface deodoriser, air sanitiser & odour eliminator. With hospital grade disinfectant properties, Oust® kills 99.9% of Germs*, Viruses** and Fungi*** on hard surfaces, whilst eliminating many unpleasant and lingering odours....