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What's the current state of play on "good fairly quiet indoor air purifiers"? Like, is there a better model than "whatever Lighthaven has" or is that the best call, and if so, what is it called on Amazon?
From my research, the current meta is the Luggable https://www.cleanairkits.com/products/luggables. Basic insight is that by going from a 99.97% removal HEPA filter to a 93% MERV-13, you can run your filters at a higher speed, quieter, with much better power efficiency, and cycle air through the filter much more quickly due to the higher fan speed. Most HEPA grade filtration misses the mark because they're far too loud running at full blast, so a quieter, faster, less efficient filter actually does a better job. The LuggableXL is about as loud