pllutted oxygen, how to remove it?

[Cortez]

and in general bad air, i see this brown cloud floating around everywhere, how to make my people breath 100% clean oxygen?

[Shintai]

Use this:
https://oxygennotincluded.wiki.gg/wiki/Deodorizer

[Loy]

This brown air is called carbon dioxide, it's a heavy gas. The deodorizer will remove some of it. But you still need more oxygen, the best way i found out for oxygen is a gas pump connected to a gas filter, select oygen and let the rest go somewhere else, connected to different gas vents. (Oxygen for the rooms and the all the other gases out of the base.)

[Loy]

Make sure you produce oxygen under the gas pumps. Use hydrogen generator later to generate power. I made 1 more filter for this. There must be some free space around oxygen producing buildings and gas pumps.

[Loy]

Remove polluted dirt and polluted water from the ground, it will create polluted oxygen(green clouds). By the way, if you hold your mouse anywhere, you should be able to see which gas it is.

[beamupstc]

Turn on the Materials Overlay and select Gases to get a clear sense of exactly which gases are where. (One of my most-used overlays!) Also I assume you're playing Terra, and in the early game.

The Deodorizer is, as stated above, the solution for Polluted Oxygen. And since early Polluted Oxygen mostly comes from off-gassing Polluted Dirt/Water, plus the Swamp biome, a little bit of thought in placing Deodorizers (e.g. at the exit from your Latrine, since the Outhouse/Wash Basin produce Polluted Dirt/Water respectively) can generally get it all cleaned before it gets out of the contained areas where it's produced.

But the Deodorizer actually does nothing at all for Carbon Dioxide.

The Carbon Skimmer is the (earliest practical) way to remove (as much as your Dupes breathe out) Carbon Dioxide. You can also dig big enough pits below your base (which you place so your Dupes never have to enter them) that the CO2 settles there, instead of skimming it. This is overall the superior technique, but the Skimmer is very easy to implement once you have a plumbed Washroom, so remains a good choice for the less-experienced.

And do NOT use Gas Pumps early on (or Gas Filters once you have access to Refined Metal), except to fill Oxygen Masks if you choose to use them. (YMMV, but I personally think they're good in the early game.) If an area of your base is getting low on oxygen, build an Oxygen Diffuser there. Actively pumping it around takes too much power until you're at Electrolyzers. Then you can power the pumps from the byproduct Hydrogen, commonly called a SPOM.

[Jay]

Originally posted by beamupstc:

Turn on the Materials Overlay and select Gases to get a clear sense of exactly which gases are where.
...
The Carbon Skimmer is the (earliest practical) way to remove (as much as your Dupes breathe out) Carbon Dioxide. You can also dig big enough pits below your base (which you place so your Dupes never have to enter them) that the CO2 settles there, instead of skimming it. This is overall the superior technique, but the Skimmer is very easy to implement once you have a plumbed Washroom, so remains a good choice for the less-experienced.

I've been trying to follow this guidance, but my oxygen diffuser keeps stopping because it hits max pressure.

And I can't dig out space fast enough to keep up with it. :(
Are there any options in the early game to lower that pressure?

[Cortez]

Originally posted by Jay:

Originally posted by beamupstc:

Turn on the Materials Overlay and select Gases to get a clear sense of exactly which gases are where.
...
The Carbon Skimmer is the (earliest practical) way to remove (as much as your Dupes breathe out) Carbon Dioxide. You can also dig big enough pits below your base (which you place so your Dupes never have to enter them) that the CO2 settles there, instead of skimming it. This is overall the superior technique, but the Skimmer is very easy to implement once you have a plumbed Washroom, so remains a good choice for the less-experienced.

I've been trying to follow this guidance, but my oxygen diffuser keeps stopping because it hits max pressure.

And I can't dig out space fast enough to keep up with it. :(
Are there any options in the early game to lower that pressure?

pumping bad air through gas filter into canisters might be one of the solutions. or for me adding bunch of those algea plants. you can also make a room only with tho algea plants and pump out the oxygen out of there into places you need to.

[beamupstc]

Perfectly normal. Diffusers will routinely stop for max pressure. It's not a problem - rather it acts to match the diffuser's output rate (and consumption of algae/power) to the local consumption rate. If other areas of your base don't have enough oxygen, build more diffusers in those areas.

This need to spread them out, coupled with the fact that each can nominally support 5 dupes, means that they pretty much inevitably spend most of their time stopped for max pressure. Which would be bad if they still consumed algae and power in that state... but they don't.

[Shadeball]

Originally posted by Jay:

Originally posted by beamupstc:

Turn on the Materials Overlay and select Gases to get a clear sense of exactly which gases are where.
...
The Carbon Skimmer is the (earliest practical) way to remove (as much as your Dupes breathe out) Carbon Dioxide. You can also dig big enough pits below your base (which you place so your Dupes never have to enter them) that the CO2 settles there, instead of skimming it. This is overall the superior technique, but the Skimmer is very easy to implement once you have a plumbed Washroom, so remains a good choice for the less-experienced.

I've been trying to follow this guidance, but my oxygen diffuser keeps stopping because it hits max pressure.

And I can't dig out space fast enough to keep up with it. :(
Are there any options in the early game to lower that pressure?

Dig lower to create more space and use ventilation to disperse the oxygen to further places until you can get a carbon scrubber going at the bottom where CO2 is collecting

[ApacheChef]

Jumping on this topic, does polluted O2 rise above normal O2? After opening a polluted water cavern in the swamp biome for dumping I noticed polluted O2 migrating out. A deodorizer seems to be handling it fine. I also found a pocket hanging out on the ceiling at the very top of my base.

[cswiger]

Originally posted by ApacheChef:

Jumping on this topic, does polluted O2 rise above normal O2?

Nope. It tends to form layers with normal O2, but not always rise or fall.

[ApacheChef]

Originally posted by cswiger:

Nope. It tends to form layers with normal O2, but not always rise or fall.

Thanks. I also spent some time watching the gas overlay and realized the migration from the cavern was probably due to the polluted O2 being pushed out by CO2 build-up. Pretty neat!