what size carbon filter for 1m x 1m x 2m grow tent

It's not the scrubber size tht counts as such, it's the power of the fan it's connected to.


A 4 inch would do it but with the filters you will be replacing them more often. If you have the cash get a 6" scrubber and fan with fan controller....then if you decide to get a bigger tent you are covered.

 

Yes but bear in mind that the efficiency of your fan will be hampered by the filter and any turns in your ducting.


A friend has just done a 4 plant grow in 1.2x1.2. A 4inch black orchid fan and rhino hobby filter....couldn't smell it outside the room the tent was in. However inside the room there was a mild sweet smell that to the trained nose would know it's a grow. I think that's because he was exhausting and bringing in the same air - there was a build up in smell.


also the filter he bought was designed to have air pushed over it, which isn't effective. Make sure you have negative pressure and sufficient airflow and smell wont be an issue other than when you open the door to the tent.

 

I'm using a 5" 150cfm fan on a cheap budget filter. No smell, wish the temps were 2-3 degrees lower, I will be upgrading my fan next grow to 200cfm+ just to help with temps

 

Sorry it's 125m3/h my current fan. That's in a 80x80x180 tent with 4 plants

 

Think about a cooltube or air cooled hood. My room has gone from average temps of 28c on a 600w reflector down to ambient house temp with 1000w cooltube (at the minute around 22c)