An overhaul of the air filtering mod by Schorty. Includes complex air filtering steps to remove pollution.
Mods introducing new content into the game.
Map generation and terrain modification.
The new Factorio hint system now displays used fuel type for factories. For the Air filters it now shows "Unknown key: fuel-category-name.pollution-filter"
Thank you for bringing this to my attention! Fixed in version 1.3: https://mods.factorio.com/mod/better-air-filtering/changelog.