What am i doing wrong with these pipes?

[ShadowG04]

i'm trying to get rid of the pressure and the Carbon dioxide on the room but the pipes get blocked, what am i doing wrong? 

[Kabrute]

Need an orange to white

 

[saltyteabag]

The carbon dioxide needs somewhere to go.  You'll need to connect another gas pipe to the orange output of the filter, and send it somewhere away from your base.

[Neotix]

This filter graphic is confusing because most ot the people think that gas is vented from orange output but in reality it's pipe output.

[Saturnus]

41 minutes ago, Neotix said:

This filter graphic is confusing because most ot the people think that gas is vented from orange output but in reality it's pipe output.

The problem I think is that air filters should work like mechanical filters do, ie. grap packets on the input of the selected type and place them on the output. The two outputs are confusing because nothing else in the game has two outputs. Especially because it's combined with an animation that seems like it vents out something.