How many exhaust fans for 3 1000w lights

Was wondering how many exhaust fans I'll need for 3 1000w hps lights?

Are you running air cooled hoods? 6", 8"...? Could be 2(1 pushing, 1 pulling), could be 1 large fan either pushing or pulling(8" minimum) it could be 3 configured in several ways, daisy chained would be a good route... How large is the room? Is it enclosed... Lots of factors to consider.

I currently have 1 light hooked up with a 6 in fan sucking air out and it's a sealed room and I'm running the sun leaves hoods

Are your temps high? That one fan might be enough

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