Honeywell - HPA5250 Series

I'm allergic to dust mites as well as ragweed. I had mine off yesterday and noticed I was sneezing quite a bit while I was cleaning. I also developed sensitivities to other things since COVID-19. For wildfire smoke and dust, I would say it's best to have a large air purifier where you spend most of your time. I think what I use is a HPA5250BC, it's not the most expensive one you could get, but it works great for me. If you're not concerned about the sound (I actually enjoy the sound of air purifiers), leaving it on max all the time is probably the best thing for you. You may need a few around your dwelling. We have a few of their smaller models around the house and MERV11 filters in the HVAC systems, but I always could tell that I feel best in my room since the other stuff isn't always on.

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.

Yes, an air purifier helps. The best brand is Honeywell with a HEPA filter. Second is Bionaire with True HEPA filter (purple one), third is Bionaire with the blue filter. Levoit kind of sucks. Don't waste your money on the Pure Enrichment Personal Air Purifier.

Honeywell Hepa Air Purifier is amazing all the time especially post fire. It's saved me.

For reasonable VOC removal there are only 4 players I know in the market which offer products which have the minimum 10 pounds of sorbent media: Airpura, Allerair, Austin, IQAir. Wildfires product a huge mix of chemicals - from the vegetation, contents of burned buildings, etc. There is no consumer solution that removes all VOCs. Each type of media is better at some chemicals, not so good or not effective at all with others. For the same reason there is no sensor that I know that will give you the level of all VOCs. These machines and filters tend to be expensive. I just upgraded my Austin units with Immunity Machine filters which cost \~$700 each. We were spared wildfire smoke this season but with AQI numbers breaking 100 I was able to keep my indoor values close to 0. I use Austin and IQAir VOC machines along with Honeywell and Whirlpool HEPA units, 3 filters per room.

Honeywell HEPA. Don't buy an electrostatic/ionizer type "purifier" as it creates O³ (ozone) - which is hazardous (and is also a component of smog).

Honeywell HEPA is what I’ve used for decades. Reliable and easy to find their filters.

Honeywell HEPA air purifiers. I have two: one in bedroom and one in the room where I spend most of my time watching TV, etc. Makes a difference for me.

I have these, as well, and they’re great. The cheap after-market filters from Amazon work perfectly for them, too.

They aren't trendy or cool, but we've had a good experience with the honeywell HEPA air purifiers. They have different options from $80 up to $250 depending on size and features.