Aeramax Pro: Both the AM3 and AM4 have 4 settings. The sound levels (dB) vary at each setting. For the AM3 the levels are 39, 46, 51 and 64. The AM4 sound levels (dB) are 49, 56, 61 and 74.
As a reference, many hand dryers sound pressure levels exceed 100 (dB), with averages around 80+ (dB). AeraMax Pro can be set to "quiet mode" and will run at or below the ambient sound level of the room in which it is installed