Microban Disinfectant Spray Plus (get the unscented formula) is a water-based bactericide, fungicide, deodorant, and antimicrobial all in one formulation. Can be applied to hard surfaces, carpet, upholstery, and mattresses (instrument cases!) -- just about any surface in need of cleaning and disinfecting. One application kills allergy- and disease-causing germs, fungi, mold, and mildew. It also provides long-lasting residual protection, so it keeps working, preventing germs and fungi from growing on surfaces long after application. Use it full-strength (don't dilute). It runs about $38-40/gallon from sources such as JonDon.