Need a little help figuring out what setting I should have my exhaust fan on

[The123321]

I have a 32x32 tent that is like 5.5 feet tall which I figure to be around 40 cubic feet. I have the 240w kingbrite quantum board led with the ac infinity 6" fan with filter. The fan has 8 speed settings on it and I run it on setting 1 and it pulls in the sides of the tent a little and keeps the tent around 77f and 60% rh on there. It looks like the first setting is like 44 cfm and setting 2 is like 88 cfm and setting 3 is like 132 cfm on up to the setting 8 on there. I am now thinking I may need to turn the fan up some to make sure it is moving the air in the tent enough to try to prevent mold in the tent on there. I would rather not turn the fan higher than the setting 2 or 3 if that is enough cfm though I definitely do not want mold in the tent on there.

I have read on different websites that say different things about how many times per minute you want to replace the air in the tent with your fan with from 1-3 times per minute or 1 time every 2 minutes on there. How many times per minute do you recommend? How much does the carbon filter reduce the cfm of the fan? Is it like half? I have the filter then a 90 degree turn with a few inches of duct to the fan then a 90 degree turn with a few inches of duct up out the top of the tent. How much do you think that reduces the cfm the fan is doing on the setting it is on?

 

[I'mback]

FWIW, I'm running an 4" 190 CFM fan in a 3x3x6ft tent, without any issues. BTW, I would have never installed a 6" fan in your set up. It is simply way overkill IMO. My walls are caved in as well = good. It means your house is at a positive pressure and smells stay inside the tent. Is your tent set up with humidity and temp controllers?

 

[The123321]

Thanks. I wanted the fan to be powerful enough to run it on low setting to do what I needed for noise and I also plan to hook up a drying tent when needed to it with duct to let the fan in the 32x32 pull the air from the drying tent into it to have the filter in the 32x32 filter it. I am only trying to figure out what cfm I would need to run the fan at to replace the air in the tent like 1 time every minute with the resistance of the filter and the 2 90 degree turns on there. I have it on the setting 2 now which is like 88 cfm and I think the tent is like 40 cubic feet which I want to make sure that is enough on there. I think that would be enough on there.

 

[I'mback]

You can still run a 2 tent set up with a 4" fan! You have more than enough. You never answered my question!

 

[The123321]

Thanks. I did not want the fan with the temperature control on it as I use the exhaust fan with the filter to do the odor control in the tent and I did not want the fan to turn off due to the temperature or rh on there.