So why not simply combine a stone-grey plastic outlet filter with a 12 Volt DC fan and add the finishing touch with a finger guard of chrome-plated steel. If you feel that plastic is not robust enough simply choose a unit of die-cast aluminium and combine it with a finger guard of stainless steel. Everything is possible! Standard filter elements are available in RAL 7032 or 7035, plastic or aluminium with or without a rain hood, AC or DC fan with diameter from 80mm to 172mm, 5VDC to 230VAC and finger guard from 80mm to 172mm in plastic, chrome-plated steel or stainless steel.
By the way, SEPA EUROPE installs the filter fans according to your specifications and thus supplies you with a customized solution for your specific application.