WattCost

Data through April 2026

Running cost · Air Purifiers · ENERGY STAR certified

Rainbow Exhalaron Ultra Tri

The Rainbow Exhalaron Ultra Tri's certified consumption is 42 kWh per year, which prices out to about $7.91 at the national average rate — your hours of use scale that directly. Only a handful of certified air purifiers do better: it ranks 21 of 214 and undercuts the median by 72%. The same unit costs $5.19 a year in North Dakota but $20 in Hawaii — electricity rates, not the appliance, make the difference. It also meets ENERGY STAR's stricter “Most Efficient” criteria. Note the certified pool here is small (214 models), so rankings shift more with each data refresh.

Estimated annual running cost · U.S. average rate 18.8¢/kWh

$7.91/yr

$5.65 · cheapest certified air purifiers$92 · priciest
Per month
$0.66
Per day
2¢
Certified use
42 kWh/yr
Rated room size
172 sq ft
CADR (smoke)
111
Technology
Fan and Filter
Efficiency
16.2 CFM/W
30 kWh490 kWh
Where the Rainbow Exhalaron Ultra Tri (▮) sits among all 214 certified air purifiers, by annual kWh

What it costs in every state

Rainbow Exhalaron Ultra Tri: 42 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama17.4¢$7.31
Alaska27.4¢$11
Arizona15.5¢$6.50
Arkansas14.2¢$5.95
California35.3¢$15
Colorado16.5¢$6.95
Connecticut32.2¢$14
Delaware18.8¢$7.89
District of Columbia25.4¢$11
Florida15.4¢$6.46
Georgia15.4¢$6.46
Hawaiipriciest46.6¢$20
Idaho12.7¢$5.33
Illinois20.5¢$8.60
Indiana17.9¢$7.52
Iowa13.9¢$5.82
Kansas15.8¢$6.63
Kentucky15.0¢$6.31
Louisiana14.4¢$6.06
Maine28.4¢$12
Maryland22.1¢$9.27
Massachusetts29.4¢$12
Michigan21.4¢$8.98
Minnesota16.4¢$6.88
Mississippi16.8¢$7.04
Missouri14.0¢$5.88
Montana13.9¢$5.84
Nebraska13.3¢$5.58
Nevada14.3¢$6.00
New Hampshire27.2¢$11
New Jersey23.5¢$9.88
New Mexico15.2¢$6.36
New York29.4¢$12
North Carolina16.3¢$6.83
North Dakotacheapest12.3¢$5.19
Ohio19.5¢$8.19
Oklahoma13.3¢$5.59
Oregon15.8¢$6.63
Pennsylvania21.5¢$9.02
Rhode Island28.3¢$12
South Carolina17.1¢$7.17
South Dakota14.5¢$6.10
Tennessee14.9¢$6.27
Texas17.0¢$7.14
Utah13.3¢$5.58
Vermont24.6¢$10
Virginia17.4¢$7.30
Washington14.4¢$6.03
West Virginia16.1¢$6.75
Wisconsin19.2¢$8.07
Wyoming14.7¢$6.17

Certified models closest in efficiency

air purifiers within reach of 42 kWh/yr
ModelkWh/yr$/yr (US avg)
GoveeLife H7126most efficient42$7.91
LEVOIT LAP-C161-WUS42$7.91
Blueair 3131000100most efficient44$8.22
Ikea E2111most efficient44$8.29
MoreLite MLRAP-2000Wmost efficient40$7.53
LEVOIT LAP-C171-QUSR39$7.41

Run your own numbers

Your rate, your numbers

Per day
2¢
Per month
$0.66
Per year
$7.91

42 kWh/yr × 18.8¢/kWh = $7.91/yr

Prefilled with this model's certified 42 kWh/yr — adjust if your usage differs from the DOE test basis. 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.

Questions, answered with the data

How much electricity does the Rainbow Exhalaron Ultra Tri use?
ENERGY STAR certifies the Rainbow Exhalaron Ultra Tri at 42 kWh per year. 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.
How much does the Rainbow Exhalaron Ultra Tri cost to run per month?
About $0.66 a month at the U.S. average residential rate (18.8¢/kWh) — 2¢ a day, or $7.91 a year. Your state's rate moves this up or down; see the table above.
Is the Rainbow Exhalaron Ultra Tri energy efficient?
It uses 72% less electricity than the median certified air purifier, placing it in the top 10% of certified models. It also meets ENERGY STAR's Most Efficient criteria.
What does the Rainbow Exhalaron Ultra Tri cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $5.19 a year in North Dakota (12.3¢/kWh) and $20 in Hawaii (46.6¢/kWh).

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