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

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I use the Smart Air 4 for small rooms and Smart Air 4 pro for big rooms. I think there might be a newer model out, and I always get the global version. Been using this brand for years.
Xiaomi smart air purifier 4 is terrific for smaller places 28-48m. They have an official shop on lazada which is where I got mine, delivered in a day or two
I’ve had a Xiaomi Smart Air Purifier 4 for about a year now, and it’s been great.
I just got the xiaomi 4 standard for 3070 baht. Good deal on Lazada.
I've got the Xiaomi smart air purifier 4 and it's great.
I got Xiaomi Smart Air Purifier 4 for 4000 THB from Lazada which has a display. And according to that PM2.5 dropped by 90+% from roughly 030 to 003. The 4 Compact is cheaper and still huge, but lacks the display for filter status in percent and PM2.5 which provides peace of mind.

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

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Austin Air - Healthmate Plus

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Winix - 5500-2

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Coway - Airmega 400

Ranked #1
Coway - Airmega AP-1512HH Mighty