silence

So for any Europeans looking for a quiet fan. Check this out. https://www.ebay.co.uk/itm/4in-100mm-Acoustic-Box-SILENT-Extractor-Fan-Low-Noise-In-Line-Duct-Fan-Grow-Room/272441837879?hash=item3f6ecc8937:g:9HIAAOSwUKxYeibM:rk:12:pf:0 I bought the 6" version. Its rated at 370m3/ph and 25db. I...

Hey folks, I'm trying to make my 3x3 tent as smell proof as possbile but I also need to work in the same room as the tent. Is it possible to bring an inline fan down to say 20-25dba while still maintaining 120ish CFM?

Hi Im starting my 1st indoor grow, I decided to go DWC seems to be going good for the most part be sides fighting below freezing temps this last week. One thing that is annoying is the sound of the air pump. tried to but something soft under it put it in a box but nothing works.. There maybe...