Yes, most emergency call button companies manufacture waterproof or water-resistant devices. Because many accidents happen in or around the shower, make sure you choose a waterproof emergency call button for the elderly so that you can wear it at all times.

An incidental release is a release of a hazardous substance which does not pose a significant safety or health hazard to employees in the immediate vicinity or to the employee cleaning it up, nor does it have the potential to become an emergency within a short time frame. Incidental releases are limited in quantity, exposure potential, or toxicity