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

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I've been using the SmartMi Air Purifier P1 for over a year now and it works great with Home assistant using both the tuya integration and LocalTuya (which requires a little more manual setup than the official protocol) . The filter lasted almost the full year and it covers my entire first floor which is about 900sf. I got it on Amazon and had no problem finding replacement filters. No complaints and would recommend this to my friends.
I hate my smartmi. No experience with other.
They aren’t well built. I bought 4. I’m down to 1. The motors fail. They start to whine loudly and become unpleasant to use before outright dying.
End of reviews

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.

Ranked #1
IKEA - UPPÅTVIND

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CleanAirKits - Corsi-Rosenthal Box

Ranked #1
Austin Air - Healthmate Plus

Ranked #1
Winix - 5500-2

Ranked #1
Coway - Airmega 400

Ranked #1
Coway - Airmega AP-1512HH Mighty