S&P TD line fans. there inline fans work with speed controlers light compact. and come in sizes from 4in up to 12in. Way quiter than the jet engine of a vortex fan. I love vortex but there simply not stealth, more for commercial and legal grows even with speed controlers.

But we need more back ground to really helo you. Like are you looking for a micro grow fan such as PC fans or a large blower or a inline. What type of grow is it for, closet, small cab or big cab?
Kushone Reviewed by Kushone on . Quiet Fan Who makes the most quiet fans? and not too expensive? Rating: 5