Mod: https://mods.factorio.com/mod/atan-air-scrubbing

It allows filtering pollution (causing a used air filter being produced) and with later research spores (used spore filter is produced).

ill check it out, any other mods you think are worth checking out while im at it? Ill probably release another big update next weekend

I have once ported this mod to 2.0: https://mods.factorio.com/mod/better-bot-battery but not officially. If you want, I can rename it and upload it.

Here is my ported version, no technology has been renamed: https://mods.factorio.com/mod/better-bot-battery2

ill add support for both of these in the next 2.1 and 2.0 backport i release, and ill support all features i can find and any mods similar too,

What sort of research did you want me to add to air scrubbers?

Productivity would be nice as they aren't easy to get, especially with higher quality.

check out the latest update, should support both across all versions!

Will try it later, I have an appointment soon.

The research options are appearing, thank you for adding them.

no worries, happy to help, thanks for the suggestions