Create: Smog

Air Scrubbers are driven by rotational force and clean faster as speed rises: at 256 RPM the output is four times that of one RPM. A scrubber cleans its own chunk at 50 percent of the rate and reaches the four neighbouring chunks. Its 6x cleaning rate covers a far wider radius, and the effect can reach up to the cloud layer. Because the stress cost is eight times that of an ordinary scrubber, a 5x5 square of them, with the scrubbers sharing one axis and a promoted block in the middle, is the usual layout.

Filtering is handled through cartridges. Right-clicking with a cartridge installs it, and right-clicking empty-handed removes it. Engineer's Goggles report the local air quality tier and how much filter life remains. Once a cartridge is spent, the scrubber halts and the cartridge is replaced with a filter that has lost its capacity. Cartridges can be washed clean with Create's splashing recipe, or a blaze heat source can burn them out. The heat level scales the effect: mouldering at 0.35, fading at 0.6, kindled at 1 and seething for the highest tier. Burning furnace fuel gives 800 ticks of operation.