The interior of the acoustic box fan is covered with a thick layer of high quality, rubber soundproofing material. And it’s proper soundproofing material! Not the usual, cheap egg crate foam, which is actually meant to recude reverberation not noise/sound levels.
Of course, any stealthy extractor fan and ventilation system, starts with a high-quality fan. That’s why we always use Torin-Sifan centrifugal fans, which operate very silent and cause very little vibration noise (unlike in-line duct fans). As centrifugal fans also move more air than in-line duct fans, you can easily operate them at dimmed/lower speeds and thus further reduce noise levels, while still providing your grow op with a proper amount of air flow. In fact, we’ve tested them in bed rooms ourselves and we didn’t lose any sleep. Now that’s stealthy!
For a super silent ventilation system, you always have to buy double the fan power (airflow) than your grow op really requires. That way you can use the fan at 50% of its max speed, which will make it run pretty much silent, while still providing your grow op with the correct amount of airflow. This is the most important step, when looking to build a silent ventilation system; double/oversize the airflow and dim down!
Calculate Your Grow Op’s Required Airflow
Use the following formulas to calculate the required airflow:
No oversizing (not recommended):
When LED grow lights are being used: grow op volume x 60 x 2 (refreshes air 2 times every hour)
When hotter/traditional grow lights are being used: grow op volume x 60 x 5 (refreshes air 5 times every hour)
With oversizing (recommended):
When LED grow lights are being used: grow op volume x 60 x 2 x 2 (refreshes air 2 times every hour @ 50% fanspeed)
When hotter/traditional grow lights are being used: grow op volume x 60 x 5 x 2 (refreshes air 5 times every hour @ 50% fanspeed)
If you’re unsure about your airflow requirements, please feel free to contact us for assistance.
Materials: anodized aluminium frame, steel-reinforced connectors, white plasticized chipboards, soundproofing
Fan: Torin-Sifan centrifugal fan
Dimmer: not included
Included: power cable
External dimensions (H*W*L): 25.19*19.68*19.68inch / 640*500*500mm