Whispure 510

I have two Whirlpool Whispure 510’s that have been running like champs for more than 10 years (with filter changes)

I have a couple of Whirlpool Whispure 510 air purifiers that I run in the room where my guinea pigs are and near the cat litterboxes. They’ve been running non-stop (except for filter changes) for 10+ years. They are big workhorses and I’d call them BIFL quality. Don’t know if Whirlpool still makes them but there’s probably an aftermarket. They’re fairly quiet, the air is fresh and it tamps down allergens. 

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.