Outside, air quality was 300-1100 (off-the-scale and very hazardous) with smoke hanging in the air like dense fog. Inside, the indoor air quality monitor says the air is very clean (AQI 23). This is with running the furnace fan continuously and changing filters every 3-4 weeks. The only downside is the smart filter feature doesn't actually know when the filters are dirty, only how much air volume has gone through them.
I've been buying the Filtrete filters for at least 15 years, and as they've increased the quality of the product, I've moved with them. So far, at 75, with a couple of dogs, and candle burninf, and wood stove, I'm still well. Thank you Filtrete!