MoiswellDefender M7R

Name: Moiswell Defender M7R
Brand: Moiswell

Dehumidifier

DOE certified water removal

24.43pints/day2019 DOE test

IEF 1.84 L/kWh

DOE class: up to 25 pints/day

DOE data as of 2026-11-03DOE record

DOE capacity class The 2019 DOE test

Moiswell Defender M7R: certified to DOE at 24.43 pints/day under the 2019 DOE test, IEF 1.84 L/kWh. DOE data as of 2026-11-03.

Every model number on this record

Filed with DOE under basic model Defender M7R. A listing with any of these numbers is this unit.

Every model number filed under basic model Defender M7R, DOE data as of 2026-11-03
Model number	Filed by
Defender M7R (DOE basic model)	Moiswell

How much does the Moiswell Defender M7R cost to run?

About $1.14 a day, or $34.23 for 30 days, running nonstop at DOE's test conditions (less on days it cycles off at its humidity setting).

24.43 pints/day is 11.56 liters. At an IEF of 1.84 L/kWh that takes 6.28 kWh a day running nonstop at DOE's test conditions. Electricity at 18.16¢/kWh, the US residential average for August 2026 (EIA Electric Power Monthly, table 5.6.A). Each 1¢/kWh you pay above or below 18.16¢ moves the daily figure by 6¢.

How does the Moiswell Defender M7R rank in its DOE class?

In its DOE class (portable dehumidifiers up to 25 pints/day), 78 models have a matched Amazon listing, not counting 1 filing flagged as unusual. 21 of them have a higher IEF than its 1.84, which is 7% above their median of 1.73. On cost, removing the same 24.43 pints a day at their median IEF would cost $36.51 for 30 days running nonstop, $2.28 more than this one.

DOE's minimum for this class is an IEF of 1.30 L/kWh for units made since June 13, 2019. At 1.84, this one files 42% above that floor. 63 of the 253 in the class file exactly the minimum. Source: 10 CFR 430.32(v)(2).

Small dehumidifiers: up to 25 pints a day (2019 test), 79 with a listing

Among 253 portable dehumidifiers up to 25 pints/day

Not counting 1 flagged filing far outside the class.

Water removal (pints/day)24.43

Higher than 206 of 253. 13 others share 24.43.

median 16

4.9524.99 pints/day

Efficiency (IEF, L/kWh)1.84

Higher than 189 of 253. 13 others share 1.84.

median 1.7

1.32.05

Three to compare with

From models with a matched listing.

Within 3 pints/day of its size, highest IEF
AeroNova DH-YS018US25-A0024.5 pints/day
DOE class up to 25 pints/day, IEF 2.05: about 10% less power for the same water removal.
Nearest size in its class with a higher IEF
LEVOIT LDH-H251S-WUS24.54 pints/day
DOE class up to 25 pints/day, IEF 1.88.
Nearest bigger unit
Dreo DR-HDH004S31.71 pints/day
DOE class 25 to 50 pints/day, IEF 2.01.

DOE record

Capacity

Water removal: 24.43 pints/day
Efficiency (IEF): 1.84 L/kWh

Record

DOE basic model: Defender M7R
DOE class: Portable dehumidifiers with a capacity less than or equal to 25 pints per day
Brands on the filings: 1
In DOE's list since: 2026-11-02first snapshot we hold
ENERGY STAR record: Defender M7Rcertified 2026-02-13

Questions

How many pints a day does the Moiswell Defender M7R really remove?: 24.43 pints/day, as certified to DOE under the 2019 test (65°F, 60% humidity). The older test ran at 80°F, so a rating from it reads higher for the same unit: the 2019 test explained.
How much does the Moiswell Defender M7R cost to run for 24 hours?: About $1.14 for 24 hours nonstop at DOE's test conditions: 6.28 kWh at 18.16¢/kWh, the US residential average for August 2026 (EIA).