ram fan make quiter

farangar

farangar

Well-Known Member
I have a small grow tent and have a 5inch ram mixed flow inline fan that is more than powerful enough to be used as passive intake, my issue is that it's very noisy even on the lowest setting so i want to know the best way to make it more quite and maybe even reduce the speed further?
 
Herb & Suds

Herb & Suds

Well-Known Member
What fan is it?
those cheap in-line tend to be noisy but if you have a speed controller it sounds to be more quality
Got a pic?
 
Herb & Suds

Herb & Suds

Well-Known Member
I use that foil insulated ducting
and that is a nice fan and controller but the statistics don't address the noise issue "sones"
 
R

rmax

Well-Known Member
Try a carbon filter on the supply side, insulating the duct work and fan then add a baffle on the exhaust The baffle can be a big box or old refrigerator lined with acoustic studio foam.
 
Star Dog

Star Dog

Well-Known Member
You can buy a plug in dimmer switch/sockety thing £10, it works with a fan but buzzes a bit, a variac is more expensive but it's silent operating 0/100% power £60.
 
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