Blueair - Pure 411+

I use two different ones: Winx C545 (Costco) and Blueair 411 (Amazon). The latter one served as the forced-air exhaust on my old DIY litter box.

I have a blue air 411a that i got for a steal. I've seen on here they can have issues later on but after a year, it's doing ok. It's pretty solid but you have to make sure to keep your home clean and dust free. I ended up switching back to a bagged vacuum and dust twice a week. An air purifier won't help if you aren't preventing dander build up too. Edit to add: i only paid $70 for it new. You'll probably want to invest in a better model that circulates air more often.

We have the 211 Max and we also have the classic 405. I have a tiny 411 in my office.

I like BlueAir because they’re quiet and I can buy after market filters in bulk for cheap. Been running a 211 (kitchen/family room) and 411 (bedroom) continuously without turning them off since 2020 and both still operate as new. The air filter taped to the back of a box fan works really well too but is very loud even on the lowest setting. I’ve used this method before I got the BlueAirs when we were dealing with real bad wildfire smoke here in California.

I have a Blue Air 411. I was waking up with a sore throat for over a year. Had the idea to run the purifier in our room at night and my sore throat is gone!

BluAir (Swedish) is what we used in the middle east.