WattCost

Data through June 2026

Running cost · Air Purifiers · ENERGY STAR certified

MEDIFY AIR MA-40-V4.0

The MEDIFY AIR MA-40-V4.0's certified consumption is 261 kWh per year, which prices out to about $48 at the national average rate — your hours of use scale that directly. It sits near the bottom of the certified table — using 76% more than the median air purifier (rank 172 of 225) — so the state you live in matters more than usual. Where you live moves the bill from $34 a year in Nevada to $138 in Hawaii. Note the certified pool here is small (225 models), so rankings shift more with each data refresh.

Estimated annual running cost · U.S. average rate 18.3¢/kWh

$48/yr

$5.50 · cheapest certified air purifiers$90 · priciest
Per month
$3.99
Per day
13¢
Certified use
261 kWh/yr
Rated room size
380 sq ft
CADR (smoke)
245
Technology
Fan and Filter
Efficiency
5.6 CFM/W
30 kWh490 kWh
Where the MEDIFY AIR MA-40-V4.0 (▮) sits among all 225 certified air purifiers, by annual kWh

What it costs in every state

MEDIFY AIR MA-40-V4.0: 261 kWh/yr × each state's average residential rate (EIA)
StateRate ¢/kWhThis model $/yrRelative cost
Alabama16.4¢$43
Alaska28.2¢$74
Arizona15.2¢$40
Arkansas14.1¢$37
California34.7¢$91
Colorado17.1¢$45
Connecticut24.3¢$63
Delaware19.3¢$50
District of Columbia24.4¢$64
Florida15.1¢$39
Georgia16.4¢$43
Hawaiipriciest52.7¢$138
Idaho14.4¢$38
Illinois19.9¢$52
Indiana17.5¢$46
Iowa15.9¢$42
Kansas15.7¢$41
Kentucky14.3¢$37
Louisiana13.5¢$35
Maine29.6¢$77
Maryland21.8¢$57
Massachusetts29.6¢$77
Michigan23.0¢$60
Minnesota17.5¢$46
Mississippi14.9¢$39
Missouri16.2¢$42
Montana15.1¢$40
Nebraska13.3¢$35
Nevadacheapest13.1¢$34
New Hampshire27.0¢$70
New Jersey24.9¢$65
New Mexico15.1¢$39
New York29.5¢$77
North Carolina14.7¢$38
North Dakota14.1¢$37
Ohio19.2¢$50
Oklahoma14.3¢$37
Oregon16.3¢$43
Pennsylvania21.7¢$57
Rhode Island29.2¢$76
South Carolina15.6¢$41
South Dakota15.4¢$40
Tennessee14.1¢$37
Texas15.9¢$42
Utah13.4¢$35
Vermont24.4¢$64
Virginia17.2¢$45
Washington14.9¢$39
West Virginia15.4¢$40
Wisconsin19.6¢$51
Wyoming15.2¢$40

Certified models closest in efficiency

air purifiers within reach of 261 kWh/yr
ModelkWh/yr$/yr (US avg)
Blueair 3613111100most efficient259$48
Midea W259$48
Toshiba W259$48
Winix T810259$48
Nuwave 47901258$47
MEDIFY AIR MA-50-V3.0252$46

Run your own numbers

Your rate, your numbers

Per day
13¢
Per month
$3.99
Per year
$48

261 kWh/yr × 18.3¢/kWh = $48/yr

Prefilled with this model's certified 261 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 MEDIFY AIR MA-40-V4.0 use?
ENERGY STAR certifies the MEDIFY AIR MA-40-V4.0 at 261 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 MEDIFY AIR MA-40-V4.0 cost to run per month?
About $3.99 a month at the U.S. average residential rate (18.3¢/kWh) — 13¢ a day, or $48 a year. Your state's rate moves this up or down; see the table above.
Is the MEDIFY AIR MA-40-V4.0 energy efficient?
It uses 76% more electricity than the median certified air purifier, which puts it among the least efficient certified models.
What does the MEDIFY AIR MA-40-V4.0 cost to run in the cheapest vs. priciest state?
At current residential rates it costs about $34 a year in Nevada (13.1¢/kWh) and $138 in Hawaii (52.7¢/kWh).

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