Air Separators should produce more N2 than O2

Considering Earth's Atmosphere is ~80% N2 and ~20% O2, Air Separators should produce more N2 than O2. N and O have similar atomic weights, so this isn't the same issue as with Electrolysis of Water and producing more O2 than H2. This would mainly help with production of Ammonia for Fert I as N2 has no other use, and right now, you produce so much excess O2 that you have to vent it. I think the current O2 production in Air Separators is perfect as is, as it is used for early Steel setups, I just think N2 should be buffed. You end up venting N2 from early Steel production anyways since you no longer need N2 for Science since Paper was added.

If we go off of the 80%-20% ratio, then the Air Separator should produce 144 N2, this would require 3 smokestakes or a large smokestack to vent in the early game, so it might be a bit much, maybe add a air separator II that has higher N2 production or a researchable alternate recipe that has higher N2 production when you aren't looking to vent it but use it instead?

Good idea and worth consideration at least, but like you said it likely a gameplay over realism choice and maybe for the best but worth a look at.

Should add the nitrogen tanks back for the research. Should have to add nitrogen for the fertilizers. I just hate having to blow so much of that into the air.

Because it's possible to separate N2 and O2 that have been mixed in a connector using 2 tanks, one might wonder why it's necessary to have an air separator in the first place?