Between these to C filters

[wdcf]

pretty sure C stands for Carbon on the periodic table, but its been a while since my last chemistry class; but back to the subject, I have read the DIY carbon filter threads and decided I did not want to make one so please no unneeded comments I am going to buy one of these two, and I have never used a carbon filter before, I have just started growing indoors, my greenthumb is mainly outdoors...........

http://cgi.ebay.com/6-x-24-ACTIVATE...in_0?hash=item4ce9bbe97f&_trksid=p3286.c0.m14

http://cgi.ebay.com/8-X-14-ACTIVATE...ash=item1c09ac836d&_trksid=p4634.c0.m14.l1262

which product do you think is best, they are roughly around the same price...

Thanks

 

[FreezerBoy]

Neither. Both use axial fans which are best left to micro grows.

Unrestricted, axials move the most air, centrifugals the least. With restriction (static pressure) axials become worthless and centrifugals SCREAM! Literally. Those things are mind numbingly loud.

From Ventilation 101



If you can place the fan behind locked doors where no one is ever allowed, go centrifugal. They can be tamed. If the fan works in a room that people are allowed to enter, consider S&P or Panasonic Whisperfans.

 

[wdcf]

Well im going to do a SOG in about a 5X5 area in my spare bedroom, and see a problem with a lot of air movement, and there would be no static pressure, do you think I would see a significant difference or would it just be a total waste of money?

 

[FreezerBoy]

and there would be no static pressure,

No static pressure? You're going to throw the filter away? Why buy it at all? If you use a filter, that's resistance; Resistance is static pressure. Axials, as are provided with the filters you linked to, are the least capable of dealing with static pressure.

In a PC or rubbermaid grow, they may be serviceable. In a room ... I think you're begging for trouble.

 

[Jnugg]

To the OP...

there is no way in hell you are going to set up an exhuast fan with ducting,A/C hoods,carbon filter without suffering from static pressure....SORRY.

Guess what.you're only using 1' of ducting....well guess what...your gonna get static pressure.

Get an inline centrifugal.....if you go the route of an S&P Mixed vent fan then you'll probably want an oversized model like the 8" as they just don't handle static pressures as well as a good inline centrifugal fan.They do make noise but plenty can be done about the noise...build an insulated fan box,use oversized insulated ducting (8" ducting for a 6" fan),use a duct muffler (this will not cause any unwanted static pressures) and then to be done with it attach a carbon filter.