Help choosing fan & filter.

[Anoney]

Currently I grow in a 80x80x160cm / 2.6x2.6x5.2ft tent but I want a fan that will be suitable for a bigger tent/space in the future.
I am quite limited to where I can buy things from to avoid extra tax and enormous shipping fees. But please give me your recommendations and I'll have a look whether I can buy that specific item or not.

Fans:

6" Hyper Fan 315 CFM
6" Rhino Thermo 447 CFM
6" Systemair RVK 423 CFM

Filters:

6" CarboAir 50 676 CFM
6" CarboAir 60 794 CFM
6" Rhino Pro 353 CFM
6" Rhino Pro 529 CFM

I'd love to hear other recommendations and information too!

[Toker1]

Rhino thermo with rhino pro 353 cfm.
Reason: highest cfm fan with lowest cfm subtracted due to the filter.

[Canuck147]

6 inch Vortex - speed controllable - but you have to buy a variable speed controller. Amazon. Cost me about $210 Canadian, for both.

[PuravidaC]

Gotta agree with Canuck147. I went through 3 exhaust fans before I got a 6" Vortex. It is by far the quietest fan going but you will need a variance controller, not a cheap speed controller to elimanate harmonics. I could have saved a ton of money if I just bought the Vortex first!

[Toker1]

I run hydro farm fans... been happy with their performance. The worst fan I had was from virtual sun (4” model). Started making a scraping noise after first year of use.