Pulling in fresh air from outside

[21reefstreet]

Hi all,
Just wondering how everyone, that pulls in fresh air from outside, does it. My tank is in the middle of the living room. Would like to try this on my skimmer or maybe experimentation. Looking for some ideas.
Thanks

 

[reefer4816]

Either through the window or run it up the wall. Into the attic. Then pop it out through a soffit vent

 

[21reefstreet]

Is 1/4" airline enough , even on a run of 10 ft or more

 

[reefer4816]

Should be fine as long as there is not kinks