Smart (Wi-Fi/app) air purifiers ranked by efficiency
Ranking criteria: ENERGY STAR "connected capable" = Yes; ranked by smoke CADR per watt (higher = more clean air per unit of electricity). Data: ENERGY STAR certification records (retrieved 2026-10-17); electricity estimates use EIA rates (July 2026 (preliminary)). These rankings are calculated from published data only. They are not hands-on tests, and noise, filter price and build quality are not considered (no such data in ENERGY STAR records).
| # | Model | Smoke CADR | Smoke CADR/W | kWh/yr | Est. $/yr | Connects via | Source |
|---|---|---|---|---|---|---|---|
| 1 | Blueair 4412311000 | 321 | 10.56 | 181 | $33.14 | Wi-Fi | 4528612 |
| 2 | Blueair 3613111100 | 443 | 10.14 | 259 | $47.42 | Wi-Fi | 4510390 |
| 3 | Blueair 3332111100 | 283 | 9.59 | 193 | $35.34 | Wi-Fi | 4079328 |
| 4 | Blueair 3432111100 | 339 | 9.5 | 227 | $41.56 | Wi-Fi | 4079329 |
| 5 | Levoit LAP-C511S-WUS | 301 | 9.26 | 194 | $35.52 | Wi-Fi | 4682774 |
| 6 | Dreame CVF20B | 224 | 9 | 149 | $27.28 | Wi-Fi | 4614554 |
| 7 | Blueair 3132111100 | 153 | 8.84 | 103.3 | $18.91 | Wi-Fi | 4510226 |
| 8 | Blueair 4512311000 | 161 | 8.75 | 110 | $20.14 | Wi-Fi | 4611094 |
| 9 | Blueair 3232111101 | 147 | 8.08 | 108 | $19.77 | Wi-Fi | 4688634 |
| 10 | Blueair 3232111100 | 145 | 7.88 | 110 | $20.14 | Wi-Fi | 4510393 |
| 11 | Levoit LAP-C311S-WUSR | 175 | 7.81 | 132 | $24.17 | Wi-Fi | 4639114 |
| 12 | IQAir ATEM E | 369 | 7.38 | 295 | $54.01 | Wi-Fi | 4016351 |
| 13 | Midea CAF-Z85US | 312 | 7.16 | 259 | $47.42 | Wi-Fi | 4439569 |
| 14 | Alen BreatheSmart 75i_V2 | 370 | 7.12 | 304 | $55.66 | Wi-Fi | 4481131 |
| 15 | Dreo DR-HAP005S | 116 | 7.12 | 98 | $17.94 | Wi-Fi | 4471358 |
| 16 | Blueair 6712211000 | 393 | 6.87 | 336 | $61.52 | Wi-Fi | 4510389 |
| 17 | Sharp KCP70UW | 255 | 6.69 | 225 | $41.20 | Wi-Fi | 4515997 |
| 18 | Frigidaire FHAP2040A1 | 240 | 6.65 | 213 | $39.00 | Wi-Fi | 4510048 |
| 19 | Coway Airmega 450S | 443 | 6.55 | 399 | $73.06 | Wi-Fi | 4005914 |
| 20 | Dreame CVA11B | 116 | 6.55 | 106 | $19.41 | Wi-Fi | 4701314 |
| 21 | Alen BreatheSmart 35i | 150 | 6.47 | 136 | $24.90 | Wi-Fi | 4481445 |
| 22 | Alen BreatheSmart 25i | 97 | 6.38 | 90 | $16.48 | Wi-Fi | 4481446 |
| 23 | Dreo DR-HAP006S | 102 | 6.34 | 102 | $18.68 | Wi-Fi | 4439710 |
| 24 | Midea KJ600G-RX600A | 366 | 6.34 | 341 | $62.44 | Wi-Fi | 4439585 |
| 25 | Sharp KJ600F-LM1-SH | 366 | 6.33 | 341 | $62.44 | Wi-Fi | 4687074 |
| 26 | Dreame CVM10B | 137 | 6.31 | 128 | $23.44 | Wi-Fi | 4667354 |
| 27 | Winix C610 | 248 | 6.26 | 235 | $43.03 | Wi-Fi | 4514027 |
| 28 | Winix C710 | 248 | 6.26 | 235 | $43.03 | Wi-Fi | 4623754 |
| 29 | Frigidaire FHAP1040A1 | 115 | 6.22 | 109 | $19.96 | Wi-Fi | 4439553 |
| 30 | Dreo DR-HAP005AS | 152 | 6.18 | 146 | $26.73 | Wi-Fi | 4670514 |
| 31 | Winix T810 | 270 | 6.14 | 259 | $47.42 | Wi-Fi | 4514026 |
| 32 | Dreo DR-HAP003S | 294 | 6.1 | 282 | $51.63 | Wi-Fi | 4577082 |
| 33 | Dreo DR-HAP007S | 143 | 6.03 | 140 | $25.63 | Wi-Fi | 4528733 |
| 34 | Midea CAF-A40US(H) | 129 | 6 | 127 | $23.25 | Wi-Fi | 4439577 |
| 35 | Levoit LAP-C601S-WUS | 391 | 5.93 | 387 | $70.86 | Wi-Fi | 4020853 |
| 36 | Levoit LAP-C601S-WUSR | 394 | 5.92 | 389 | $71.23 | Wi-Fi | 4020852 |
| 37 | Levoit LAP-C401S-WUSR | 234 | 5.91 | 235 | $43.03 | Wi-Fi | 4429169 |
| 38 | Levoit LAP-B851S-WNA | 85 | 5.86 | 90 | $16.48 | Wi-Fi | 4481120 |
| 39 | Blueair 5431111000 | 216 | 5.79 | 220 | $40.28 | Wi-Fi | 4510387 |
| 40 | Dreo DR-HAP009 | 158 | 5.79 | 162 | $29.66 | Wi-Fi | 4586495 |
| 41 | Dreo DR-HAP009S | 158 | 5.79 | 162 | $29.66 | Wi-Fi | 4586496 |
| 42 | Levoit Core 400S | 231 | 5.75 | 237 | $43.39 | Wi-Fi | 4027325 |
| 43 | Winix AT40 | 265 | 5.72 | 272.02 | $49.81 | Wi-Fi | 4618154 |
| 44 | Dreo DR-HAP007AS | 143 | 5.7 | 152 | $27.83 | Wi-Fi | 4577020 |
| 45 | GoveeLife H7126 | 39 | 5.65 | 42 | $7.69 | Wi-Fi | 4016425 |
| 46 | Dreo DR-HTF022S | 90 | 5.59 | 102 | $18.68 | Wi-Fi | 4698194 |
| 47 | Winix Tower XQ | 461 | 5.59 | 486 | $88.99 | Wi-Fi | 4572714 |
| 48 | Dreo DR-HAP008S | 115 | 5.48 | 125 | $22.89 | Wi-Fi | 4610614 |
| 49 | GoveeLife H7128 | 142 | 5.46 | 154 | $28.20 | Wi-Fi | 4437344 |
| 50 | Blueair 7411371000 | 272 | 5.43 | 294 | $53.83 | Wi-Fi | 4510386 |
| 51 | Dreo DR-HAP010S | 130 | 5.28 | 148 | $27.10 | Wi-Fi | 4587204 |
"Connected" is the manufacturer's ENERGY STAR declaration; app features vary and are not evaluated here.