I find myself more sensitive to unnecessary noise as I get older but "fanless" seems to be the Designers Dream while a fan is practical in terms of build cost a

I find myself more sensitive to unnecessary noise as I get older but "fanless" seems to be the Designers Dream while a fan is practical in terms of build cost and utility. A fan CAN spin up and provide a LOT of cooling if needed. And stay still otherwise. An absence of fan provides no options. I get a fan for my computer case. But lament service and retail centres with with echoing brick walls, polished concrete floors and hard surface ceilings. It isn't relaxing ambience, it is echoing noise...