Levoit - Core 600S-P

I have a medium density dust layer on my filter every 2 weeks that I vacuum out, definitely working in regards to dust, but I also manually change the speed to filter out the air (Levoit has a feature where you input the size of the room and it runs on higher speed until it presumably filters all the volume of air).

I have a single Levoit 100s in a 1200sf home, and it does a great job. I had a 300s in my large-ish master br at my last home and it was fantastic too. Super quiet and very effective, filters aren't too expensive.

Which works best? I have an IQAir and it's very effective but it's MAHOOSIVE (switches on automatically though when a smart switch turns it on). Also a Levoit 300s - still evaluating. Main goal: house dust mite allergy control

Love my levoit ones

LEVOIT Air Purifiers for Home... https://www.amazon.com/dp/B09BJMY8HL?ref=ppx_pop_mob_ap_share I have two smaller ones too for small rooms. And I've bought a medium size for my mom's place. You should get one that's appropriate for the size of your space.

I just ordered 2 of the Levoit 600S-P.

I have a Levoit in my Lego room. It's a godsend. I would hate to have to frequently dust my city and everything on the shelves. I don't have to do much in there at all, maybe once a year light dusting. I probably don't even need to do that

We have two and yes they do. We have a purple air indoor AQI sensor and I’ve run tests - the Levoit units we have definitely help a lot.

I got this guy on sale for 250. LEVOIT Air Purifiers for Home... https://www.amazon.com/dp/B09BJMY8HL?ref=ppx_pop_mob_ap_share Currently got a 40$ coupon making it 260. It’s good for up to 2000sq I use it in a 900sqft space so just using the app to set the auto eco mode allows it to keep the pace good even on low setting.

The absolute most important number is the Clean Air Delivery Rate (CADR) Your goal should be to supply a high enough rate of clean air to clean the air in your space at LEAST 6 times per hour. A general rule of thumb to follow is you want the ratio between Cubic feet per minute of clean air (or CFM) and the square footage of a space to be 2/3. So if you have a 150 square foot room, you want an air purifier with at least 100 CFM Both of the units you mentioned have around the same CADR at their highest setting (important to note that most people don't leave their purifiers at the highest setting as that will be loud) so you should go with whichever or is cheaper. However, there are some other options within your budget, such as other brands that might be higher CADR or buying multiple smaller units for the space. For example, the IQAir unit you mentioned is $1,099.99 and gives about 330 CFM at its max setting. You could buy two Levoit Core® 600S purifiers which would have a max CFM of over 800 and it would be a few hundred dollars cheaper. Or could buy two or 3 AirFanta 3Pro units and have over 1000cfm for only like 600 dollars. How big is the space you are trying to clean?

For Covid purposes, the particle size does not matter that much. Any of the purifiers that you mentioned would do a fantastic job. I’d recommend getting one of the larger units (or two of the smaller units) and running them on the medium setting. I’d recommend against the IQAir unit as it’s just very expensive for the CADR. If I were you, I’d buy one Levoit Core 600s and run it on the 2nd setting normally and 3rd setting when someone else is in the room. That would be more than sufficient for the space you mentioned and would only be 300 dollars instead of 1000.

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.