All Purus stainless steel toilets, except back-mounted V131 & V135, are supplied with capped holes for a toilet seat. If you instead would prefer seat pads, you need to drill the holes, according to the installation instruction .
No, it's not the non-flushing that makes the urinals hygienic or unhygienic. A PUM scent trap in the drain will provide an odorless environment. Instead, bad smell often comes from poor cleaning around the urinal.