From Superslick

Superslick Steri-Spray is safe and effective for use on non-porous materials such as instruments, cases, music stands, chairs, door handles, and tables. The active ingredients in this hospital-grade formula (quaternary ammonium) will effectively and safely cleanse your mouthpiece and instrument of germs. To deodorize and freshen instrument case interiors, lightly spray and allow to air dry.

The convenient 2 oz. size with fine mist sprayer top fits in most instrument cases. An 8 oz. spray bottle and 32 oz. refill are also available.