How much Carbon is enough? (Los Angeles)

In Los Angeles... and so many things to understand!

In an apartment with a big living room and a small bedroom, how much carbon in a unit is enough?

For example, I have a 20x25 living room/kitchen and a 12x12 bedroom, and I keep the windows all closed when fires are close.

if I get something like the IQair Healthpro Plus (5 lbs carbon) or Airdoctor 5000 (3 lbs carbon) in the living room and an air doctor 3000 in the bedroom, will that be enough?

or will I need something like one of those 20-30lb active carbon specific units as well?

could use advice. I've been trying to make sense of everything I'm reading on the forums and it's a lot to take in.