I am going to metamorphose the atmosphere filter contained by my vault. which side face the floor?

the filter has 2 sides. 1 side have metal threads, the other side doesn't. which side faces the floor? appreciation
Is in attendance any other method to put...
Answers:    fgf
My ably pump is set at 30/50 but...
The metal threads should be facing outward, and the non-metal side into the system.