I recently bought and set up a Ratrig Chamber Filter. I got it working but there are a few discrepancies.
The on-line docs state the that default fan speed is 1.0, or 100%; however it runs at 50%. I found this setting in a configuration file chamber_filter.cfg where it has this: variable_chamber_filter_speed: 0.5
One or the other needs to be changed to make them the same.
Also strangely I also start to get this written to the console at the end of the print: RatOS: Deactivating chamber heater... I do not have a Chamber Heater
I don't think I got this before but not sure; it may be related to setting up the Chamber Filter though.