Will 400 CFM air pump be enough for a small bathroom?

I'm thinking about buying a AC Infinity Cloudline T6 (400 CFM) for my grow space, which is about 8' x 8' x 5' (320 cubic feet).

I'll be using 150 true watts of LEDs (1 x 50W Chinese LED and 1 x 100W Mars Hydro LED).

Bathroom has no additional vents.

I will be using a carbon scrubber.

Trying to grow 2-3 plants, I'm a new and small time grower.

I live in an area where temps and humidity are pretty moderate (70-85 F and 45-60% humidity).

Based on this online calculator, I should only need 332 CFM (I assumed I have 1.5 lights, since I believe their calculator uses HID lights for their calculation, and I am using LEDs).

Will the 400 CFM rating of the Cloudline T6 be enough?
(Just want to see if there's anything I'm missing here, or anything else I should consider.)

 

Thanks Budget!

By "no additional vents" I just mean there's no bathroom exhaust vent that many standard bathrooms have.

I was thinking of covering the door with tarp material, and creating an exhaust hole at the top (which I will connect scrubber and 400 CFM pump to), and intake hole with fine-mesh filter at the bottom (which will be the intake). These will be the only intakes / exhausts as this bathroom only has an entrance door, and no other windows, exhausts, etc.