WattCost

Data through April 2026

Air Purifiers · 67 certified models

Most Efficient Air Purifiers

67 of 214 certified air purifiers meet the bar for "Most Efficient Air Purifiers." At the U.S. average electricity rate they cost $5.65 to $63 a year to run — median $17, versus $28 across the whole category.

The 50 most efficient (of 67)

Most Efficient Air Purifiers, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1Blueair 4612522000most efficient30$5.65
2AeroNova DH-JH01Amost efficient33$6.21
3AeroNova MK01Amost efficient33$6.21
4ALROCKET MK01Amost efficient33$6.21
5AROEVE MK01Amost efficient33$6.21
6BREEZOME MK01Amost efficient33$6.21
7Greenlite G-Pure-7Wmost efficient33$6.21
8KLOUDIC MK01Amost efficient33$6.21
9REEMKIZZ MK01Amost efficient33$6.21
10ALROCKET DH-JH020US-A00most efficient36$6.78
11AROEVE DH-JH020US-A00most efficient36$6.78
12BREEZOME DH-JH020US-A00most efficient36$6.78
13KLOUDIC DH-JH020US-A00most efficient36$6.78
14REEMKIZZ DH-JH020US-A00most efficient36$6.78
15TABYIK DH-JH020US-A00most efficient36$6.78
16VOOPNU DH-JH020US-A00most efficient36$6.78
17MoreLite MLRAP-2000Wmost efficient40$7.53
18GoveeLife H7126most efficient42$7.91
19Rainbow Exhalaron Ultra Trimost efficient42$7.91
20Blueair 3131000100most efficient44$8.22
21Ikea E2111most efficient44$8.29
22Ionic Pro TA750most efficient55$10
23CLOROX 11020most efficient57$11
24BLACK+DECKER BAPT02most efficient61$12
25Blueair Pure 411most efficient64$12
26COWAY AIRMEGA, COWAY, Coway Airmega 50most efficient67$13
27Honeywell HPA120most efficient72$14
28Honeywell HPA125most efficient72$14
29Blueair 1831022000most efficient75$14
30Rainbow Luggable XXLmost efficient75$14
31Rainbow Luggable XL Ultramost efficient81$15
32MEDIFY AIR MA-14most efficient86$16
33Afloia Kilomost efficient87$16
34CLOROX 11101most efficient88$17
35Blueair 3131000000most efficient89$17
36MegaLight AP-HCE99-WTmost efficient89$17
37Alen BreatheSmart 25imost efficient90$17
38Byzeng APH200-22Jmost efficient90$17
39LEVOIT LAP-B851S-WNAmost efficient90$17
40MegaLight AP88-DTS-WTmost efficient90$17
41Greenlite G-Pure-15Wmost efficient92$17
42Rainbow Luggable Ultramost efficient93$18
43Rainbow Brisk Box Ultramost efficient94$18
44Honeywell HPA4100Bmost efficient95$18
45Dreo DR-HAP005Smost efficient98$18
46Dreo Home DR-HAP005Smost efficient98$18
47AROEVE DH-JH021US-A00most efficient101$19
48Blueair 3132111100most efficient103$19
49Aeocky LunaPure-EJH001most efficient109$21
50Blueair 4512311000most efficient110$21

Questions, answered with the data

How much does it cost to run most efficient air purifiers?
Among 67 certified models in this data, most efficient air purifiers cost $5.65 to $63 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $17.
Do most efficient air purifiers cost more or less than the average air purifier?
The median model here runs $17 a year, 41% less than the $28 median across all certified air purifiers.
What's the cheapest model among most efficient air purifiers?
The Blueair 4612522000 costs about $5.65 a year at the U.S. average rate (30 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for air purifiers?
The certified annual kWh comes from the ENERGY STAR room air cleaner test basis, which assumes continuous daily operation. Running fewer hours costs proportionally less.

Keep digging