Fans, carbon scrubber filter questions

[Sticksnstems]

I will be growing in a SECRET JARDIN DR90 (3x3x6) with a 400w hps with batwing reflector. I have a fantech 6inch 220cfm centrifugal fan and i hope to keep costs down by using this fan. The air will come from an evironmentally controlled living space and exhausted into that same room.

I will grow AK48 from Nirvana.

My questions are

What size filter will be best for this setup. Weight is an issue as i understand the secret jardin doesnt support a great deal.

What brand? I have never used a carbon filter/scrubber.

Any info, tips, tricks, knowledge, and insights greatly appreciated.

 

[Granger2]

Phresh uses an aluminum/aluminium can. Much lighter than a steel can. Good luck. -granger