How often to exchange room air? to replenish C02?

Can a 4" duct booster running continuous exchange enough air in a 3x3x6.5 grow tent?

I just built a 500watt aircool COB from Timber Grow Lights DIY
my tent holds temp for 20-30min before my big inline comes on the cool the room.

I keep the 4" duct booster running all the time. just wondering if it replenishes the Co2 enough for 4 plants?
If I run my Inline fan continuous on low, my room temps run about 70f which is a little low.

Not understanding. A pic says a thousand words. Are your air cooled lights in a enclosure or is it just muffin fans mounted to an open chassis?

I gutted a aircooled hood for hps/mh. Cut a piece of 1/8” plate aluminum to replace the glass.

Mounted the COBs and pin heat sync to the aluminum plate. And the drivers. Totally sealed and cooled.

It’s cooled with a 6” Inline. That draws air from outside the tent and expells it to another room.

Pm me your e-mail. I’ll send a pic that way.

This all depends on how or if co2 is being replenished to the area. Is it a basement where there woild be limited fresh air? Even so, at a minimum 10 air changes permhour in the tent, so take the volume of the tent x 10 compare that to fan cfm x 60. Getting fresh air to the room and balancing temps would be my questions.

my 4" duct booster is rated at 80cfm. but its hooked to a filter. is say 40cfm at best is getting moved.

tents about 60cu/ft

by that math the tent is exchanging air complete 40X a hour?

Bookush34 said:

my 4" duct booster is rated at 80cfm. but its hooked to a filter. is say 40cfm at best is getting moved.

tents about 60cu/ft

by that math the tent is exchanging air complete 40X a hour?

Click to expand...

Duct boosters arent designed for static pressure loads like filters so your estimate o f 50% may not be low enough. By the math in my head your off by an order of magnitude, 4 ACH (2400/600 = 4). Why not divert some of the 6in fan airflow before if you want cool air after if you want warm, then use booster as exhaust through filter to contol odor, keep tent negative pressure and have fans working together?

Or use 4in for light and 6in for exhaust and filter, if fixtyer ismpassive pin fin style then booster fan should be fine for it.