A protective coating of colloidal silver is painted on the inside and outside of the filter to kill bacteria.
VOA: special.2009.06.22
Matching its older sister's 10.1-inch Gorilla Glass screen, there's now an all-over splash resistant coating(inside and out), with those intriguing cut-off corners we've seen already there to aid the ergonomics of handling the slab.
Teams of workers Thursday began taking measurements to layer the inside of the windows with a Mylar shatter-resistant coating similar to that on car windshields.