Honeywell - HPA304 (Allergen Plus)

I don’t know if it’s the best, but it had great reviews at the time. I have a couple Honeywell AllergenPlus units and they are workhorses. They have been around forever and you can buy generic versions of the filters. I have a unit in my bedroom that’s been running nonstop for years.

I’ve got a Honeywell too, it’s the 300 series so pretty big. Yes the filters are expensive. I order the filters on Amazon though which saves a bit. My husband has terrible dust allergies and he noticed a difference right away. We live in a one bedroom. I will add I don’t usually run it in the summer when we have our AC cause the AC uses a lot of power.

I use the large room honeywell air purifiers. The one I have now has been running 24/7 for the last 5 years or so and is still trucking along. I use it because my wife and son smoke weed and smoke bothers me. It does a good job getting rid of the smoke and the amount of crap that is on the filter is amazing. I pretty much never have to dust.

I live in a tall loft with ciment ceilings and it produces a lot of dust. I got a large Honeywell HEPA air purifier and it works very well. The carbon pre-filter can be vacuumed and there is a thick layer of hair and dust every week. The inner filters I vacuum every month and change them once a year.

Just stay away from the Honeywell HPA models. They all develop a burning smell. I've swapped my 2 out a total of 6 times.