Core 600S

Have a core 600 and it’s fantastic!

I have a vital 100s in my bedroom. Its great. And one core 600 for the house, that is in way to large of an area but it does what it can and does a fairly good job

The regular/Core 600S (not plasma pro) is a beast, and you can run it on low in a bedroom and still get a good CADR. Highly recommend for the price point (~$250)

The Levoit 600S series is quite powerful for the price and is a good choice. If you want quiet, you want to oversize - get a unit for medium to large spaces and run it on low when sleeping and high when not in the room. If you can stretch your budget a little or hunt for a sale, the Coway 240/250/250s or Levoit EverestAir (US only model) are great options.

The displayed PM2.5 value on our 3 Core 600S is completely off by around +20ųg/m3 so need to ignore that and use a third party air quality meter. We have a Core 300s as well for the office which displays correct values, not sure what that's about. Other than that, they are fantastic at cleaning the air! We went for the bigger 600S for our 35m2 bedroom because it allows to have it on lower fan speeds at night for similar CADR as the smaller models at max speed which is too loud for sleeping. We live in a dusty climate and keep the device at speed 1-2 at night and the rooms PM2.5 and PM1.0 are consistently at 2-3ųg/m3 now. Best bang for your buck for sure. Coway Airmega 400 has the same CADR and costs 2x as much for example.

I have two small coways (meh), Dyson (meh, but very good for heating!), Levoit 600S - very good and just got blueair signature - so far very happy. 

The ones that I used, Im most happy with Levoit 600S

Dude, your knowledge is incredible! May I pick your brain a little? I live in Dubai. AQI is 50-150. When it's 50-100 it OK. When it goes to 150 and above, I feel my purifiers cant handle it. 2.5 particles are the main issue. Mainly from the desert, construction and traffic. Right now a lot of outside air gets sucked around doors. Next week I will have worked fixing it, setting up proper air-intakes with a simple filter (better than around the doors) that I can easily change. From there, it goes via AC system (basic filtering) + same basic filters on ducts. Our house is 1700sqf, I have Levoit 600s (living + kitchen), x2 Coway Airmega 150 (one in each bedroom) and one Dyson (we dont use it very often). As mentioned, when air gets bad, I feel they dont do enough, even if I set them to highest settings. I hope my paper-filter solution will help. However, Im considering adding another purifiers. My two concerns are - it will eat up more space + it costs money. I dont mind paying if I have to. Im pretty happy with Levoit. Coways - not so much. Two of them need to clean less space than single levoit, but doing much worse job. So I was thinking to add either another Levoit or maybe BLUEAIR Blue Signature. Which one would be better for 2.5 particles?

I got the levoit 600s and it takes care of my entire 650 sq ft apartment! Very powerful

Would strongly recommend the Coway Airmega - I own three (Levoit Core 100s, 600s and the Coway) and the Coway wins hands down. You should be able to get it from Amazon for within your price range