How many LB's of beads do I need?

[Coffee Grounds]

I have a 500ct humidor. So how many pounds of beads do I need.
The humidor has 3 levels.

I have an Oasis but its been on the fritz lately.

 

[trogdor | the burninator]

here you go, buddy

http://heartfeltindustries.com/calculator.asp

it's a matter of dimension, not count. the count will just get you an estimate.