here's the first page of this thread. look at the chart that measures performance (cfm) and rated db levels.
then make sure to also compare that to the subjective noise rating, which picks out annoying things like motor ticks, clicks, hum, whine, etc.
all around best choice may be the Noiseblocker M12-S3 or some GTs. Naturally, read the information and make a choice that works for you.






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