Variable, between 6 months and a year, per the manufacturer's recommendation and unit's ability to sense when the filter needs replacing. It seems like you're s

Variable, between 6 months and a year, per the manufacturer's recommendation and unit's ability to sense when the filter needs replacing. It seems like you're saying yours only last a week because you're constantly generating fumes from 3D printing? I don't do anything like that. I would be curious to get some kind of independent measurement of effectiveness of a new filter over time (and I suppose I will from my air monitor next time I replace). But again, the point is my separate air quality monitor shows increases in CO2 that are not associated with rise in any of the other 4 detectable pollutants it measures.