Surface Hygiene
There are those amongst our competitors who, citing the findings of research institutes, make much in their brochures of the enhanced sterilizing properties of certain finishes. FSB likewise has access to reports proving that, for instance, cupriferous metals kill germs more effectively than, in particular, synthetic materials. But FSB sets no great store by such findings.

Whether a given finish destroys bacteria in 24 hours or in 72 is academic really, since in practice, doors tend to be in fairly regular use anyway.

You’d have to take remedial action every time a door was opened or closed if you wished to eliminate germs altogether.