
Coway
Airmega AP-1512HH Mighty
Durable, effective for allergens/odors, but loud on high.

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We bought a Medify MA50 and it has really helped with the pollen and our dark hardwood floors are a lot less dusty.
Our hardwood floors stay dust free for weeks with our Medify MA50 which is pretty incredible.
I really like my Medify Air purifiers, but also hear very good things about Coway. Medify has pretty good sales a couple times a year, if you sign up for their email list. I especially like the MA-50 because at level 3 (not 4), it’s still doing a lot of CADR but is a very reasonable volume; I’m really sound sensitive, and I can have it going while watching TV or holding a conversation and have no problem.
I use MedifyAir. For the bedroom there are options of either MA-12 or MA-14 as they cover 203 sq ft in 30 mins. (I use MA-14). They have different size options for your basement maybe get [MA-50-V3.0 Air Purifier](https://medifyair.com/products/ma-50-air-purifier) that covers 1,320 sq ft in 30 mins. I end up wiping the dust off with a tissue maybe a month or two in, and end up using the filter extra as it fills out more rather than changing every 3 months on the dot. This also depends on use -- if for living room change it on proper schedule if it runs 24/7. I am not sure if there are washable filter options for air filters (only for vacuum cleaners).
Have a medify 50 and the coway mega that has been mentioned by others. The Medify has UV lamps which I haven't changed out yet, but should be making a difference. I have the filter in my cat's room and the thing is a monster handling her fumes, I'm impressed.
I have tried and gotten rid of Bluair and levoit- just inadequate performance and louder than I like. I replaced them with Medify and have been very happy with the switch. If memory serves I have an ma-50 in the living room and ma-40 is each bedroom.
I have Medify MA-25. High-end HEPA filter. Bought 4 for work during COVID 6 years ago. Bought more for myself. At low and medium speed it is quiet so as not to bother kitty near litter box. Recommend pet version with charcoal for even better odor control. She also likes to sit in front of the much larger and noisier version in my living room. Maybe reminds her of outside wind when she was abandoned.

Coway
Airmega AP-1512HH Mighty
Durable, effective for allergens/odors, but loud on high.

Levoit
Vital 200S-P
Smart, effective dust/odor; some find replacement filters pricey.

Winix
5500-2
Budget king, durable; poor VOC removal, Plasmawave disliked.

Coway
Airmega Mighty
Durable, great for allergies/dust, responsive auto-fan.

Winix
5510 & 5520
Good value, durable, effective for pets; carbon filter issues.

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Coway - Airmega AP-1512HH Mighty