OK, so I'm looking at working with a grow room that measures 8ft x 14ft or 112 ft. sq. Hypothetically, with 32-36 girls in it.

So, according to posts I've read, some people use a 50w per square foot ratio for HID lights, and some use a 62w per square foot ratio. By these two numbers that's 5600-6944w of HID lights. Does this sound reasonable? Accurate? Could I get away with less without greatly reducing yield?

Moving on to airflow and odor control. The plan is to buy a large air purifier, moving all exhaust through it on the way out. I've seen several types, including those that use activated carbon. I just want to be sure it's large enough. Please stop me if this is not a good idea. On the opposite side of the room would be fresh air intake. What numbers, in terms of CFMs should I be shooting for the exhaust and intake? Also, what size ducting? 12 in? Larger?

Any and all help is greatly appreciated.
ThaRaven7 Reviewed by ThaRaven7 on . Some Questions about my newest project. OK, so I'm looking at working with a grow room that measures 8ft x 14ft or 112 ft. sq. Hypothetically, with 32-36 girls in it. So, according to posts I've read, some people use a 50w per square foot ratio for HID lights, and some use a 62w per square foot ratio. By these two numbers that's 5600-6944w of HID lights. Does this sound reasonable? Accurate? Could I get away with less without greatly reducing yield? Moving on to airflow and odor control. The plan is to buy a large air purifier, Rating: 5