Another update… I have been running my Compact Filter now after another 10-20 hours of cutting, including about an hours worth of material with MDF (walnut plywood, and also proofgrade draftboard). I switched out my “pre-filter” and I am still on a “3” setting. I think the pre-filter is really helping! Highly recommend. I change it out once I start smelling the odor a little stronger, rather than bumping up the filter #. I just bought another 2 sets of these filters (2 filters each, so 4 total filters that fit the GF) for about $16.
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