Need cheap efficient quiet fan filter combo please

[Farmall]

Same for my Cloudline T-6 series.... you can also add insulated flexible ducting if you go with the sound box...the effects are cumulative

[Gluteous]

I've had my Vortex S-Line 6" fan for about 5yrs now. Most impressive thing about it is how quiet it runs. Not the cheapest at the time, $200 for the fan/filter combo, but it is quiet.

[Toker1]

If the fan is too loud, you can build a sound proof box and operate it inside that.
they also make duct mufflers to silence the sound of the air swishing around inside the ducting.

[BearsFan]

I also use a Hurricane, the thing has been on for 12 months with only a few days off. Not sure that is the quietest thing around, but it's doing the job and then some for my 3x3 grow tent needs.

[sgiacomo]

I found the cheap ones are too loud but did get a refund from Vivosun. Bought a Hurricane and have had zero problems running max for six months 24x7.

[Nofriends1]

I'm looking for just that, I bought a 20$ vivosun 8 inch fan but it's super loud. I'm willing to spend more than 20, was just testing the waters. Need a fairly cheap quiet efficient fan/filter combo please?!