2×2

◻  light
◻  resevoir
◻  fan
◻  ducting
◻  carbon filter

4×4

◻  light
◻  resevoir
◻  fan
◻  ducting
◻  carbon filter

5×5

◻  light
◻  resevoir
◻  fan
◻  ducting
◻  carbon filter

6×6

◻  light
◻  resevoir
◻  fan
◻  ducting
◻  carbon filter