ModelPortable
Portable dehumidifier, 16 pints a day
Water removed a day
16pints
16 pints/day, DOE 2019 test · EPA
Cost a year in the United States
$33
Pumps water out?
Not published
Ask for the pump lift
How loud?
Not published
Ask for a dB(A) figure
Energy use
182kWh/yr
Refrigerant
R-290
Check before you buy. Pump, noise, and warranty aren’t in our sources, so ask the seller.
Our read
At 16 pints a day, the PD21MB-20 sits below the smallest size in the ENERGY STAR table. That size is 20 pints, for a damp room under 2,000 sq ft. Its yearly energy use sits near the median, so weigh drainage, noise, and price.
16 pints a day
| How damp the space is | Under 2,000 sq ft | Over 2,000 sq ft |
|---|---|---|
| DampSmells musty now and then50–75% RH | Too small20–30 pints suggested | Too small30+ pints suggested |
| Very dampDamp spots on walls or floor75–90% RH | Too small25–40 pints suggested | Too small40+ pints suggested |
| WetWalls sweat or water seeps in90–100% RH | Too small30–50 pints suggested | Too small50+ pints suggested |
Capacity suggested for each case, read Oct 5, 2026. ENERGY STAR adds that it’s better to oversize than undersize.
Running cost
A portable lasts 11 years on average, by the DOE’s count. In that time, this model costs $1 less to run in the United States than the median 14–18 pint model. The 11 thriftiest 14–18 pint models, such as the Concetta AS-CSJ72XK-4D5WT-OL, would each save $2 over those years.
How long dehumidifiers lastAsk before you buy
No source we use gives a dB(A) figure for the PD21MB-20. For a bedroom or an office, ask the seller for one, and for the distance it was measured from.
Quiet dehumidifier guideFrom the data
Our arithmetic
Water
2.0gal
16 pints
Electricity
4.1kWh
liters ÷ IEF
Cost
$0.75
in the United States
A day of nonstop drying means 16 pints of water, about 2 gallons, for some 4.1 kWh. At the average home electricity price in the United States, the PD21MB-20 costs $0.75 to run that day.
The EPA’s yearly estimate, 182 kWh, adds up to about 44 days like that. Each extra day at full output costs another $0.75.
Those 16 pints come from a DOE test at 65°F and 60% humidity. Cooler air at that humidity gives up less water, so expect fewer pints in a cold basement.
Every day at full output leaves 2 gallons to get rid of. Check how the PD21MB-20 drains, since our sources don’t say.
Running cost
182 kWh a year × the home electricity price of each state.
| State | Price | Relative cost | Per year |
|---|---|---|---|
| Louisiana (lowest) | 12.72¢ | $23 | |
| U.S. averageYour state | 18.31¢ | $33 | |
| U.S. average | 18.31¢ | $33 | |
| California | 33.61¢ | $61 | |
| Hawaii (highest) | 48.00¢ | $87 |
Safety
No CPSC recall names this model.Checked Oct 4, 2026.
No CPSC dehumidifier recall names Bnlink.
Every number has a source
U.S. EPAOct 15, 2026
Capacity, energy use, refrigerant, filing company, certification.
Record 4689254 · certified Aug 11, 2026U.S. Energy Information AdministrationJuly 2026
Home electricity price in each state.
Electric Power Monthly, Table 5.6.ACode of Federal RegulationsOct 7, 2026
Federal minimum efficiency for each size of dehumidifier.
10 CFR 430.32(v), as of Jan 1, 2025Consumer Product Safety CommissionOct 4, 2026
Recalls of dehumidifiers.
No recall naming this companyNot published by these sources
Found a number that looks wrong?Report it
Full spec sheet