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Air purifiers ยท Buying guide

Best air purifiers for dust in rooms of 300 to 500 sq ft

#1 is the Rainbow Luggable XXL. Of the 56 models that fit, it clears dust from the air fastest (358 cfm).

The list

  1. 1

    Rainbow Luggable XXL

    • Clean air per minute: dust358 cfm
    • Room size it is rated for474 sq ft
    • Clean air per minute: smoke306 cfm
    • Electricity per year75 kWh
  2. 2

    Coway Airmega 300

    • Clean air per minute: dust333 cfm
    • Room size it is rated for488 sq ft
    • Clean air per minute: smoke315 cfm
    • Electricity per year314 kWh
  3. 3

    Blueair model 3332111100

    • Clean air per minute: dust314 cfm
    • Room size it is rated for439 sq ft
    • Clean air per minute: smoke283 cfm
    • Electricity per year193 kWh
  4. 4

    Midea KJ500G-L1

    • Clean air per minute: dust314 cfm
    • Room size it is rated for474 sq ft
    • Clean air per minute: smoke306 cfm
    • Electricity per year297 kWh
  5. 5

    Noma model 143-0033-2

    • Clean air per minute: dust314 cfm
    • Room size it is rated for474 sq ft
    • Clean air per minute: smoke306 cfm
    • Electricity per year297 kWh
  6. 6

    okaysou AirMac X7

    • Clean air per minute: dust314 cfm
    • Room size it is rated for474 sq ft
    • Clean air per minute: smoke306 cfm
    • Electricity per year297 kWh
  7. 7

    Cuckoo CAC-K1910FW

    • Clean air per minute: dust314 cfm
    • Room size it is rated for474 sq ft
    • Clean air per minute: smoke306 cfm
    • Electricity per year325 kWh
  8. 8

    Sharp AirMac X7

    • Clean air per minute: dust313 cfm
    • Room size it is rated for473 sq ft
    • Clean air per minute: smoke305 cfm
    • Electricity per year299 kWh
  9. 9

    Midea KJ500G-JA32

    • Clean air per minute: dust310 cfm
    • Room size it is rated for459 sq ft
    • Clean air per minute: smoke296 cfm
    • Electricity per year292 kWh
  10. 10

    PELONIS KJ500G-JA32

    • Clean air per minute: dust310 cfm
    • Room size it is rated for459 sq ft
    • Clean air per minute: smoke296 cfm
    • Electricity per year292 kWh

How this list is made

We start from every air purifier certified by ENERGY STAR and sold in the US (206 models). Models shown: rated for rooms of 300 to 500 sq ft. Ranked by clean air per minute: dust (higher is better). Ties go to the one that uses less electricity.

Data: ENERGY STAR certified products list, checked 2026-11-09. We have not tested these products ourselves.

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