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[–] 9 points 7 months ago (1 child)

I highly doubt they do. They probably just get tested and tagged, and maybe to make sure the filters are cleaned/replaced. Otherwise, I really don't know. Do the daily cleaners even wipe those down? I've more often seen people cleaning the traffic lights (3 times in my entire life) than I see anyone go near a hand dryer with a cloth (none).

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