Air purifier reviews

Each review uses the same 12-section template: a front-loaded verdict, measured results, and an honest “who should skip this” section. We do not publish a ranking of products we have not tested.

Smart Air

Smart Air Blast

We tested the Smart Air Blast in our 9 m² room: 12.4 min on speed 3, one huge H13 filter, 42–54 dB(A) noise, and running cost for offices and schools.

Best for
offices, meeting rooms, classrooms, and shared spaces up to about 90 m²
Time to clean on top speed
12.4 min

Smart Air

Smart Air QT3

We tested the Smart Air QT3 portable purifier: 291 min to clean our 9 m² room on speed 3, 35.8–40.6 dB at 1 m, 1.7–6.4 W, and 2.32 h battery.

Best for
desks, travel, and a 1.2 m personal zone
Time to clean on top speed
291.4 min

Smart Air

Smart Air SA600

We tested the Smart Air SA600 in our 9 m² room: 24 min to clean on top speed, dual H13 and carbon filters, 35–57 dB(A) noise, and yearly cost in baht.

Best for
living rooms, family bedrooms, and condos up to about 45 m²
Time to clean on top speed
24 min

Smart Air

Smart Air Sqair

We tested the Smart Air Sqair in our 9 m² room: 33.5 min to clean on speed 3, 37–55 dB(A) noise, real running cost in baht, and who it suits best.

Best for
bedrooms, home offices, and study rooms up to about 30 m²
Time to clean on top speed
33.5 min