How much CFM should I use for roughly 450 cubic feet?

Correction approx. 550cu.ft.

Planning on this unit with the charcoal filter:https://smile.amazon.com/gp/product/B004Q2ER5C/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DER#feature-bullets-btf

build is here:https://www.rollitup.org/t/hickerbilly-budget-room-aka-this-thread-under-construction.912465/

Anyone think that will be good?


-bump

O.k. found a formula here>>> https://www.rollitup.org/t/would-this-work.911239/page-7#post-12675958

Looks like this unit will give my about 20 more CFM than I should need.