Blueair - Mini Max Air Purifier, 2-pack

That is an absolutely SHIT product and it's shameful Costco is selling them. You see how it says it cleans the air in a 432 ft² room in 60 Minutes? That means it's actually rated to clean a 100 square foot room, at best, when it's on high. It's an utter garbage product and shouldn't exist. They're only produced to take advantage of people that don't understand air purifiers. Introducing something like this into your home with have an extremely negligible impact on air pollution, while raising the noise pollution in your home. Again, on the loudest fan setting, it's rated to clean a 100 square feet room. $120 at Costco is about the least you can spend per bedroom, and it will be loud. You need to spend more on a larger unit if you want to turn the fan down to a reasonable volume. I've got severe allergies and starting using air purifiers in the 90's, and you're going to need to spend a big chunk of change if you want clean air at a low volume level, and it's going to take up quite a bit of floor space.

I have one in a 14x10 kids room and it’s been great for two years. The winix ones are better for more space

I have them and have had two other blueair purifiers for a couple of years. To quote from another reddit thread on the same topic: Blueair air filters meet CARB (California Air Resources Board) certification standards, so they emit less than 50 parts per billion of ozone as an upper limit. It seems that some people feel there is no safe amount of ozone generation and claim adverse health effects (lung/throat irritation) but this will be specific from person to person. Knowing Costco has a generous return policy, why not get it and if it makes you feel worse then return it?

Own Levoit 400 for our main living area (1,100 sq ft apt), the smaller one in our bedroom (toddler sleeps with us). Had them prior to Covid and love them. I vacuum the filters when I can per the manual. I got my mom the blueair 311i max because she was closer to one of the “minor” fires here in LA and she loved it so much she got the mini for her bedroom along with my dad’s (they sleep in separate rooms lol). I ended up getting the mini to bring to work.

Blueair Blue Pure Mini Max Air Purifier. Filters down to .1 microns and only costs £59 in the UK. They sell it in the US as well. They also have other models for larger spaces. [https://www.blueair.com/us/air-purifiers/3654.html](https://www.blueair.com/us/air-purifiers/3654.html) Their website doesn't list the microns for some reason, but it is listed as down to .1 microns on the UK Amazon page. [https://www.amazon.co.uk/gp/product/B08KQJ7XGM/ref=ewc\_pr\_img\_1?smid=A3P5ROKL5A1OLE&th=1](https://www.amazon.co.uk/gp/product/B08KQJ7XGM/ref=ewc_pr_img_1?smid=A3P5ROKL5A1OLE&th=1)

Another vote for BlueAir. I particularly appreciate that it’s a toddler-friendly design (some models have child locks, all are lightweight with no pinchy controls) and that the outer filter is washable preserving the inner filter for not-dust. I have a mini and several 411 (older versions and one newer i+). Zero complaints after years of heavy use in a city with smoke season and plenty of traffic soot.

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