Moe DeLoughan writes:

Upgrade your toilet to a no-touch flush. This easy-to-install retrofit
kit brings a KOHLER touchless flush to almost any toilet.
Once it's installed, just hold your hand over the tank sensor to
activate the flush. No handle to touch means fewer germs to pick up or
leave behind.
Touchless module projects an electromagnetic field through the top of
the tank lid that senses your hand, causing the toilet to flush.

$100.00.

http://www.us.kohler.com/us/catalog/...uctNumber=1954

No way, I wouldn't buy it.

Germs are all around us. We couldn't live without them.
Fear of germs is a mental illness. Don't set out on the
path of trying to live in a sterile environment, it's
not good for you.

--
Dan Espen