Have you looked into liquid ozone?

As more people look for safer ways to clean, and take into account impact on the environment, new technologies have arisen. Lotus Pro is one of those new technologies I think has a place in everyday cleanups and sanitizing routines for selected customers. Using plain tap-water, the Lotus Pro system creates liquid ozone which is registered as a sanitizing agent. What could be safer. And liquid ozone is completely environment-friendly.

Lotus Pro "chargers" come in bottle-type for use in classrooms, offices, breakrooms and to carry on custodial carts, and high-capacity type for filling into automated machinery. This is a dynamic system you will probably want to know about if safety, reduced chemistry need and green-building practices are important in your facility planning.