Running cost
Lower power bill than most 19–28 pint models
It uses 42 kWh a year less than the median 19–28 pint model. Over 11 years, the DOE’s average life for a portable, that’s about $85 saved in the United States.
How long dehumidifiers lastOur read
Who it suits
At 21 pints a day, the Sandidry Pro35C fits a damp space under 2,000 sq ft. It’s too small for a very damp or wet one. It’s one of the cheaper models of its size to run.
21 pints a day
Where that fits on the ENERGY STAR sizing table
| How damp the space is | Under 2,000 sq ft | Over 2,000 sq ft |
|---|---|---|
| DampSmells musty now and then50–75% RH | Fits20–30 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.
Same figures, other brand
Same EPA figures as the AlorAir Sentinel Pro35X
The company that files it with the EPA lists the AlorAir Sentinel Pro35X with the same capacity, energy use, and efficiency. Compare their prices and warranties before you choose.
Ask before you buy
Ask for a noise figure
Our sources publish no noise level for the Sandidry Pro35C. If it runs where you sleep or work, ask for a figure in dB(A), with the distance it was measured from.
Quiet dehumidifier guideFrom the data
Where it stands
- Uses 242 kWh a year, 42 kWh under the median of its class.
- Its refrigerant is R-32, flagged as lower GWP.Global warming potential 675.
- No Wi-Fi app.Not listed as connected.
- Of the 155 certified 19–28 pint portables, 1 uses less energy, and 1 uses exactly as much.
- At 1.90 liters per kWh, it clears the federal minimum for its class by 46%.The DOE sets 1.30 L/kWh for portables rated 25 pints a day or less. Every unit made since June 13, 2019, must meet it.
- Argendon’s only model on the EPA list.
- Sold since March 2025. Among 19–28 pint models, 16 of 155 came out earlier.
- On the EPA’s Most Efficient list, like 30 other 19–28 pint models.
- The company that files it also files the Abestorm, AlorAir, and BaseAire models with the EPA.
- Another brand near this size: the AlorAir Sentinel Pro35X, at 21 pints and 242 kWh a year.Both cost the same to run in the United States.
Our arithmetic
One full day of drying
Water
2.7gal
21.27 pints
Electricity
5.3kWh
liters ÷ IEF
Cost
$0.97
in the United States
In 24 hours at full output, the Sandidry Pro35C pulls about 2.7 gallons of water from the air and uses about 5.3 kWh. That day costs $0.97 in the United States.
About 46 such days make up the EPA’s yearly estimate of 242 kWh. If yours runs at full output more often, every extra day adds $0.97.
Its rating comes from a DOE test at 65°F and 60% humidity. In cooler air at that humidity, the Sandidry Pro35C pulls out less than 21.27 pints a day.
Its built-in pump can lift those 2.7 gallons as high as 19.6 feet.
Running cost
Cost in your state
242 kWh a year × the home electricity price of each state.
| State | Price | Relative cost | Per year |
|---|---|---|---|
| Louisiana (lowest) | 12.72¢ | $31 | |
| U.S. averageYour state | 18.31¢ | $44 | |
| U.S. average | 18.31¢ | $44 | |
| California | 33.61¢ | $81 | |
| Hawaii (highest) | 48.00¢ | $116 |
Safety
Recalls
No CPSC recall names this model.Checked Oct 4, 2026.
No CPSC dehumidifier recall names AlorAir Solutions.
Every number has a source
Where the numbers come from
U.S. EPAOct 15, 2026
Capacity, energy use, refrigerant, filing company, certification.
Record 3998547 · certified Feb 21, 2025U.S. Energy Information AdministrationJuly 2026
Home electricity price in each state.
Electric Power Monthly, Table 5.6.AArgendon, the brandOct 8, 2026
Pump, pump lift, lowest working temperature, dimensions, weight, warranty, restart after a power outage, and defrost, as the brand lists them. The last three come from its user manual. Shown with its written permission.
argendon.com/products/crawl-space-dehumidifier-sandidry-pro-35cCode 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
- Noise, dB(A)
- Bucket size
Found a number that looks wrong?Report it
Full spec sheet
All the details
How much water it removes2 of 3 published
- Water removed a dayDOE 2019 test (Appendix X1)
- 21.27 pints EPA
- Type
- Portable EPA
- Room size covered
- Not published
Drainage2 of 4 published
- Bucket size
- Not published
- Drain hose connection
- Not published
- Built-in pump
- Yes Argendon
- Pump lift
- 19.6 ft Argendon
Running cost3 of 3 published
- Energy useEPA yearly estimate
- 242 kWh/yr EPA
- Integrated energy factor (IEF)Liters removed per kWh. Higher is better
- 1.90 L/kWh EPA
- Cost a year in the United States
- $44 EPA × EIA
Noise0 of 1 published
- Noise level, dB(A)
- Not published
Build and warranty8 of 8 published
- Refrigerant
- R-32, 6 oz EPA
- Wi-Fi app
- No EPA
- Lowest working temperature
- 37.4°F Argendon
- DimensionsInches, in the order Argendon lists them
- 12.9 × 14.14 × 24.55 in Argendon
- Weight
- 40.5 lb Argendon
- WarrantyThe manual gives 1 year, labor included. For the compressor, condenser, and evaporator, it gives 3 years with labor, or 5 years with labor not covered
- 5 years on cooling-system parts only Argendon
- Restarts after a power outage
- Yes Argendon
- Defrost
- Automatic Argendon
Certification and filing5 of 5 published
- ENERGY STAR® certified
- Feb 21, 2025 EPA
- On the market since
- Mar 3, 2025 EPA
- Filed byCompany that filed the model with the EPA
- AlorAir Solutions EPA
- Sold in
- United States, Canada EPA
- UPC
- 717392887804 EPA
Compare
Similar 21-pint models
Certified portables of the same size with a full page, closest in yearly energy use.
AlorAir
Sentinel Pro35X
Capacity
21 pintsCost a year in the United States
$44Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Midea
MAD20S1QWT
Capacity
20 pintsCost a year in the United States
$46Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Deye
DYD-P30
Capacity
25 pintsCost a year in the United States
$47Pump
Not publishedNoise
Not publishedENERGY STAR® certified
Guides
Guides that cover this model
Each guide compares the certified models of this size for one need.