>Clyde > > From what I have been led to understand, it is not the how long the sound > goes on, but at what decibel level it is, that hurts the ears. You might > want get a decibel reader somewhere and see how loud that AC is. But even > if it isn't loud enough to cause hearing damage, it might have other > effects. There have been cases where a constant noise made people sick, > or at most, irritable. > >Wim Wim, quit being led and go look it up. <G> Damage occurs@ 85db 8 hours - heavy traffic, noisy restaurant, factory 110db 1 minute 29 seconds - power saw, baby crying, symphony concert depending on where you look it up, but duration of exposure is as critical as sound pressure level. I expect frequency range is too, but there doesn't seem to be much out there on that. Diane, are you out there? Ron N
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