Air Filters:
Air filters should pull pollution from the chunk that is highlighted.
Pollution added to the air filter entity increases based on pollution on the chunk.
If the chunk runs out of pollution, the air filter entity no longer gains pollution.
The air filter must have greater than 65% power to gain any pollution.
Correct about the "pollution" gas units not representing pollution count on a chunk.
The air filter running is what removes pollution from the chunk, not the script.
Open to balancing changes, if you have feedback.