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  • ENERGY STAR Most Efficient 2024
    Room Air Cleaners
    THE YEAR'S BEST OF ENERGY STAR FOR EFFICIENCY & INNOVATION

    Products that make the ENERGY STAR Most Efficient list for 2024 deliver cutting edge energy efficiency along with the latest in technological innovation. They represent the year’s very best for energy savings and environmental protection.
For information on the appropriate sized room air cleaner for your application, see the Buying Guidance on the Room Air Cleaners page

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ENERGY STAR Most EfficientField details
Room Size (sq.ft.)Field details
Dust-Free Clean Air Delivery Rate (cfm)Field details
Pollen-Free Clean Air Delivery Rate (cfm)Field details
Smoke-Free Clean Air Delivery Rate (cfm)Field details
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Room Size (sq.ft.):
191
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
52.7
Partial On Mode Power (Watts):
0.22
Smoke-Free Clean Air Delivery Rate per Watt:
13.8
Dust-Free Clean Air Delivery Rate (cfm):
107.0
Pollen-Free Clean Air Delivery Rate (cfm):
96.0
Smoke-Free Clean Air Delivery Rate (cfm):
123.0
Room Size (sq.ft.):
184
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
57.2
Partial On Mode Power (Watts):
0.4
Smoke-Free Clean Air Delivery Rate per Watt:
12.4
Dust-Free Clean Air Delivery Rate (cfm):
121.0
Pollen-Free Clean Air Delivery Rate (cfm):
131.0
Smoke-Free Clean Air Delivery Rate (cfm):
119.0
Room Size (sq.ft.):
437
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
154.6
Partial On Mode Power (Watts):
0.72
Smoke-Free Clean Air Delivery Rate per Watt:
10.8
Dust-Free Clean Air Delivery Rate (cfm):
281.0
Pollen-Free Clean Air Delivery Rate (cfm):
315.0
Smoke-Free Clean Air Delivery Rate (cfm):
282.0
Room Size (sq.ft.):
698
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
246.8
Partial On Mode Power (Watts):
0.4
Smoke-Free Clean Air Delivery Rate per Watt:
10.7
Dust-Free Clean Air Delivery Rate (cfm):
400.0
Pollen-Free Clean Air Delivery Rate (cfm):
450.0
Smoke-Free Clean Air Delivery Rate (cfm):
450.0
Room Size (sq.ft.):
163
Technology Types:
Ion Generator,Fan and Filter
Annual Energy Use (kWh/year):
59
Partial On Mode Power (Watts):
0.4
Smoke-Free Clean Air Delivery Rate per Watt:
10.6
Dust-Free Clean Air Delivery Rate (cfm):
120.0
Pollen-Free Clean Air Delivery Rate (cfm):
120.0
Smoke-Free Clean Air Delivery Rate (cfm):
105.0
Room Size (sq.ft.):
118
Technology Types:
Ion Generator,Fan and Filter
Annual Energy Use (kWh/year):
42.7
Partial On Mode Power (Watts):
0.16
Smoke-Free Clean Air Delivery Rate per Watt:
10.5
Dust-Free Clean Air Delivery Rate (cfm):
77.0
Pollen-Free Clean Air Delivery Rate (cfm):
61.0
Smoke-Free Clean Air Delivery Rate (cfm):
76.0
Room Size (sq.ft.):
437
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
158.2
Partial On Mode Power (Watts):
0.47
Smoke-Free Clean Air Delivery Rate per Watt:
10.5
Dust-Free Clean Air Delivery Rate (cfm):
281.0
Pollen-Free Clean Air Delivery Rate (cfm):
315.0
Smoke-Free Clean Air Delivery Rate (cfm):
282.0
Room Size (sq.ft.):
413
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
152.4
Partial On Mode Power (Watts):
0.45
Smoke-Free Clean Air Delivery Rate per Watt:
10.3
Dust-Free Clean Air Delivery Rate (cfm):
278.2
Pollen-Free Clean Air Delivery Rate (cfm):
328.6
Smoke-Free Clean Air Delivery Rate (cfm):
266.5
Room Size (sq.ft.):
413
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
152.4
Partial On Mode Power (Watts):
0.45
Smoke-Free Clean Air Delivery Rate per Watt:
10.3
Dust-Free Clean Air Delivery Rate (cfm):
278.2
Pollen-Free Clean Air Delivery Rate (cfm):
328.6
Smoke-Free Clean Air Delivery Rate (cfm):
266.5
Room Size (sq.ft.):
284
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
105.8
Partial On Mode Power (Watts):
0.34
Smoke-Free Clean Air Delivery Rate per Watt:
10.2
Dust-Free Clean Air Delivery Rate (cfm):
188.0
Pollen-Free Clean Air Delivery Rate (cfm):
194.0
Smoke-Free Clean Air Delivery Rate (cfm):
183.0
Room Size (sq.ft.):
880
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
328.8
Partial On Mode Power (Watts):
0.24
Smoke-Free Clean Air Delivery Rate per Watt:
10.1
Dust-Free Clean Air Delivery Rate (cfm):
580.2
Pollen-Free Clean Air Delivery Rate (cfm):
450.0
Smoke-Free Clean Air Delivery Rate (cfm):
567.5
Room Size (sq.ft.):
880
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
328.8
Partial On Mode Power (Watts):
0.24
Smoke-Free Clean Air Delivery Rate per Watt:
10.1
Dust-Free Clean Air Delivery Rate (cfm):
580.2
Pollen-Free Clean Air Delivery Rate (cfm):
450.0
Smoke-Free Clean Air Delivery Rate (cfm):
567.5
Room Size (sq.ft.):
547
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
209.2
Partial On Mode Power (Watts):
0.33
Smoke-Free Clean Air Delivery Rate per Watt:
9.9
Dust-Free Clean Air Delivery Rate (cfm):
347.0
Pollen-Free Clean Air Delivery Rate (cfm):
380.0
Smoke-Free Clean Air Delivery Rate (cfm):
353.0
Room Size (sq.ft.):
566
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
223.4
Partial On Mode Power (Watts):
0.45
Smoke-Free Clean Air Delivery Rate per Watt:
9.6
Dust-Free Clean Air Delivery Rate (cfm):
385.0
Pollen-Free Clean Air Delivery Rate (cfm):
427.0
Smoke-Free Clean Air Delivery Rate (cfm):
365.0
Room Size (sq.ft.):
636
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
256.1
Partial On Mode Power (Watts):
1.39
Smoke-Free Clean Air Delivery Rate per Watt:
9.5
Dust-Free Clean Air Delivery Rate (cfm):
410.0
Pollen-Free Clean Air Delivery Rate (cfm):
410.0
Smoke-Free Clean Air Delivery Rate (cfm):
410.0
Room Size (sq.ft.):
566
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
228.8
Partial On Mode Power (Watts):
0.7
Smoke-Free Clean Air Delivery Rate per Watt:
9.4
Dust-Free Clean Air Delivery Rate (cfm):
385.0
Pollen-Free Clean Air Delivery Rate (cfm):
427.0
Smoke-Free Clean Air Delivery Rate (cfm):
365.0
Room Size (sq.ft.):
561
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
228.6
Partial On Mode Power (Watts):
0.46
Smoke-Free Clean Air Delivery Rate per Watt:
9.3
Dust-Free Clean Air Delivery Rate (cfm):
383.3
Pollen-Free Clean Air Delivery Rate (cfm):
438.7
Smoke-Free Clean Air Delivery Rate (cfm):
361.9
Room Size (sq.ft.):
561
Technology Types:
Fan and Filter
Annual Energy Use (kWh/year):
228.6
Partial On Mode Power (Watts):
0.46
Smoke-Free Clean Air Delivery Rate per Watt:
9.3
Dust-Free Clean Air Delivery Rate (cfm):
383.3
Pollen-Free Clean Air Delivery Rate (cfm):
438.7
Smoke-Free Clean Air Delivery Rate (cfm):
361.9
Room Size (sq.ft.):
282
Technology Types:
Fan with Electrostatic Plates
Annual Energy Use (kWh/year):
116
Partial On Mode Power (Watts):
0.15
Smoke-Free Clean Air Delivery Rate per Watt:
9.2
Dust-Free Clean Air Delivery Rate (cfm):
200.0
Pollen-Free Clean Air Delivery Rate (cfm):
295.0
Smoke-Free Clean Air Delivery Rate (cfm):
182.0
Room Size (sq.ft.):
260
Technology Types:
Fan with Electrostatic Plates
Annual Energy Use (kWh/year):
112
Partial On Mode Power (Watts):
0.19
Smoke-Free Clean Air Delivery Rate per Watt:
8.8
Dust-Free Clean Air Delivery Rate (cfm):
189.0
Pollen-Free Clean Air Delivery Rate (cfm):
203.0
Smoke-Free Clean Air Delivery Rate (cfm):
168.0