Honeywell HPA4100B: $20 a year to run
This model (Air purifiers) uses 95 kWh of electricity a year, which costs about $20 a year and $200 over 10 years at 21.0¢/kWh.
Energy use
95 kWh
per year
Running cost per year
$20
21.0¢/kWh
Running cost over 10 years
$200
Efficiency rank
56 / 240
Product details
| Room size (sq ft) | 169 |
|---|---|
| Technology | Fan and Filter |
| ENERGY STAR Most Efficient | Yes |
| Available since | July 1, 2026 |
Compared with the average model (Air purifiers), this one saves about $18 a year.
More efficient alternatives
| Model | kWh/year | Cost/year |
|---|---|---|
| Rainbow Brisk Box Ultra | 94 | $20 |
| Aeocky Cybertron | 93 | $20 |
| Rainbow Luggable Ultra | 93 | $20 |
| Greenlite G-Pure-15W | 92 | $19 |
| WOZOYO Pure Air PA2 | 92 | $19 |
| Alen BreatheSmart 25i | 90 | $19 |
| Byzeng APH200-22J | 90 | $19 |
| LEVOIT LAP-B851S-WNA | 90 | $19 |
- Refrigerators
- Freezers
- Washing machines
- Dishwashers
- Tumble dryers
- Room air conditioners
- Dehumidifiers
- Water heaters
- Electric cooktops and ranges
- Televisions
- Computers
Source: ENERGY STAR (U.S. EPA) · 21.0¢/kWh (August 2026) · Methodology