silent ventilation

Hey guys. Long story, short... i build a diy grow box 2x2x6, and was planing to use 3x noctua nf-p12. The pc fan has a pressure of 1.2-1.7mm H2O. I am just really beginning to doubt the efficiency when i add a Carbon filter. I havent drilled the holes for the fan yet, so i wont have to...

Hey Guys. I have just build a Grow Box 2x2x6 (60x60x180). I need this grow to be secret tho, so i dont have the option to use a noisy ventilator. Therefore, I’d love to hear your opinion/experience with pc fans in such “big” grow box. I was looking at the Spiderfarmer SF1000, since they produce...

Hey Guys. I am planning to build a Grow Box 2x2x6 (60x60x180). I need this grow to be secret tho, and need to hear your opinion, on if this is even possible. I was looking at the Spiderfarmer SF1000, since they produce less heat/watt and use no noisy fans. I am considering to buy 3 pc fans...

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...

Well after an odd set up, trying to make a 2x2 tent work in a 8x10 room I decided to just buy a 4x4 tent and vent them both out the house. I went with a 6" Hurricane Inline fan, 435CFM. I used as much ridged pipe as possible. I vented it out the basement wall to the atmosphere. Reduced to 4"...