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You’re totally correct about the noise, however I actually use a commercial all-metal box fan to ventilate my apartment and it’s really awesome. I only run it at night, and I put it in a window in another room, facing out with some material around it to make a snug fit. The result is a steady breeze coming in the bedroom windows at night and a muted hum from the other room. It makes regular plastic box fans look like…
yeah, i don't mean to say that no commercial-grade products are suitable for home use, just that you need to be a lot more careful if you're buying products for a use they aren't intended for. if you buy a product designed for home use, you can be reasonably sure that it will work in a home setting if you buy a commercial-grade product, you just need to pay close attention to what trade-offs have been made that might…
At one point, years ago, my brother and I considered creating a web site that explored these kinds of high-integrity options, and acted as a directory and maybe a review site as well. A site that evangelizes high-quality, well-engineered items that are easily integrated into a home and provide much greater longevity without costing a fortune. "Overkill" is probably too strong a term for the idea.