Best low-energy air purifiers for rooms over 500 sq ft with app control

The list

1. 1

   Blueair model 3432111100

   • Electricity per year227 kWh
   • Room size it is rated for525 sq ft
   • Clean air per minute: smoke339 cfm
   • Ozone it gives off2 ppb
2. 2

   Blueair model 3613111100

   • Electricity per year259 kWh
   • Room size it is rated for687 sq ft
   • Clean air per minute: smoke443 cfm
   • Ozone it gives off2 ppb
3. 3

   IQAir ATEM E

   • Electricity per year295 kWh
   • Room size it is rated for572 sq ft
   • Clean air per minute: smoke369 cfm
   • Ozone it gives off0 ppb
4. 4

   Alen BreatheSmart 75i_V2

   • Electricity per year304 kWh
   • Room size it is rated for574 sq ft
   • Clean air per minute: smoke370 cfm
   • Ozone it gives off1 ppb
5. 5

   Blueair model 6712211000

   • Electricity per year336 kWh
   • Room size it is rated for609 sq ft
   • Clean air per minute: smoke393 cfm
   • Ozone it gives off2 ppb
6. 6

   Midea KJ600G-RX600A

   • Electricity per year341 kWh
   • Room size it is rated for567 sq ft
   • Clean air per minute: smoke366 cfm
   • Ozone it gives off0 ppb
7. 7

   PURECODE PAR001

   • Electricity per year341 kWh
   • Room size it is rated for567 sq ft
   • Clean air per minute: smoke366 cfm
   • Ozone it gives off0 ppb
8. 8

   Sharp KJ600F-LM1-SH

   • Electricity per year341 kWh
   • Room size it is rated for567 sq ft
   • Clean air per minute: smoke366 cfm
   • Ozone it gives off0 ppb
9. 9

   Levoit LAP-C601S-WUS

   • Electricity per year387 kWh
   • Room size it is rated for606 sq ft
   • Clean air per minute: smoke391 cfm
   • Ozone it gives off0 ppb
10. 10

    Levoit LAP-C601S-WUSR

    • Electricity per year389 kWh
    • Room size it is rated for611 sq ft
    • Clean air per minute: smoke394 cfm
    • Ozone it gives off2 ppb

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 over 500 sq ft and with app control. Ranked by electricity per year (lower 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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