arnt carbon scrubbers more effective when air is pulled through instead of pushing out?

not sure i agree that passive intakes need to be twice the size of the exhaust. i would think that one exactly the same size would be more benificial for circulating the air in the room as the air would be pulled thro at a faster rate. ive used multiple passive intakes that are 1" holes strategically positioned to blow directly onto every single plant (1 hole for each of my 10 plant's) thus there is no need to use a fan inside the cabinet killing two birds with one stone.