I completely agree. Recently purchased an air filter and it was a ridiculous amount of work to find a quality product. Even the supposedly data driven blogs did

I completely agree. Recently purchased an air filter and it was a ridiculous amount of work to find a quality product. Even the supposedly data driven blogs didn't post the lower cost options, probably because of affiliate revenues on the high end models. Besides the PM2.5 aspect (which, as far as I can tell, can be solved by pushing a large volume of air through a HEPA filter), there's also the quality and type of the carbon filter, which is what traps a number of other things such as VOCs and most scents. You also need to know the type of thing you're filtering - smoke, for example, you really need a carbon filter for, and if you really want to filter a decent quantity of smoke, you'll need to drastically oversize the filter (e.x. Get a large industrial filter for a small area.) In case anyone's curious what I got, I didn't need to filter smoke, so I got one of the larger Levoit filters and used it in a small room, and I'm happy so far.