How do the continuously self cleaning door handles at hospitals work?

Question

How do the continuously self cleaning door handles at hospitals work?

In: Technology

Answer 1

There is a patent for this but I am not sure if they are actually used yet.

I will answer a different question, if they are made out of copper then they are not self-cleaning but they are anti-septic. Copper is like kryptonite to a lot of micro-organisms.