Hey I just put this on today and my sound went from about 80 decibels to almost zero. I haven’t measured but all you here is a little wind like a dry’s vent with just the air coming out so I din’t measure it. I had a more solid tube I tried and it was 100 decibels. I hope this will work okay I think it’s meant for grow tents. It has tiny holes inside so I am sure it will get fill up with dust. So have to keep an eye on it and see.
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