Commercial and residential dehumidifiers do the same thing, but a commercial dehumidifier is built for continuous duty: a tougher housing, a stronger fan, a pump, and the ability to work in cold, very wet spaces. Industrial dehumidification on job sites and after floods often uses LGR (low grain refrigerant) units, which keep pulling water out even when the air is already fairly dry.
The trap is the capacity rating. A home unit's 50 pints is measured at 65F under the DOE test. A commercial unit's headline number is often measured at saturation, 90F and 90% relative humidity, where any dehumidifier removes far more water. Always compare the AHAM figure (80F, 60% RH) instead.
| Model | AHAM pints/day (80F, 60% RH) | Saturation pints/day (90F, 90% RH) | Airflow |
|---|---|---|---|
| AlorAir Storm LGR Extreme | 85 | 180 | 210 CFM |
| AlorAir Storm 80X | 80 | 170 | 200 CFM |
| AlorAir Sentinel HDi90 | 90 | 198 | 210 CFM |
| AlorAir Sentinel HDi65S | 55 | 120 | 130 CFM |
Sources: AlorAir Amazon listings and spec sheets. The saturation figure is roughly double the AHAM figure for every model, which is why it is the one printed largest.
Commercial dehumidifiers compared
| Pick | Capacity | Coverage | Pump | Noise | ENERGY STAR | Price tier | |
|---|---|---|---|---|---|---|---|
| Best commercial dehumidifier with pump AlorAir Storm LGR Extreme | 85 pints/day (AHAM 80F) | Up to 2,300 sq ft (Amazon listing) | Yes | Not published | Not stated | $$$$$ | Check price |
| Best efficient commercial unit AlorAir Storm 80X | 80 pints/day (AHAM 80F) | Up to 2,100 sq ft (Amazon listing) | Yes | Not published | Not stated | $$$$$ | Check price |
| Best commercial dehumidifier for basement AlorAir HDi90 | 90 pints/day (AHAM 80F) | Up to 2,600 sq ft (maker claim) | Yes | Max 58 dB (Sylvane listing) | Not stated | $$$$$ | Check price |
| Best ducted commercial unit Santa Fe Advance Dry110 | 110 pints/day (AHAM 80F) | Up to 3,600 sq ft (Amazon listing) | No | Not published | Not stated | $$$$$ | Check price |
| Best whole-building option Aprilaire E130 | 130 pints/day (AHAM 80F) | Up to 7,200 sq ft (maker FAQ); Amazon listing says up to 7,200 sq ft | No | Not published | Yes | $$$$$ | Check price |
Best commercial dehumidifier with pump
AlorAir Storm LGR Extreme Commercial Dehumidifier with Pump
Best for: flooded basements, crawl spaces and job sites.
The AlorAir Storm LGR Extreme is a compact LGR unit rated at 85 pints a day at AHAM conditions and 180 at saturation, with 210 CFM of airflow. Its built-in pump comes with a 19.6 ft hose and lifts 14.7 ft, and its rotomolded plastic housing stands up to job sites. The listing shows grains per pound (GPP) on the display, which restoration crews use to track drying. It draws 646 W.
| Model number | Storm LGR Extreme |
|---|---|
| Type | Commercial LGR (low grain refrigerant) |
| Capacity (AHAM test, 80F, 60% RH) | 85 pints/day |
| Coverage | Up to 2,300 sq ft (Amazon listing) |
| Built-in pump | Yes |
| Wi-Fi / app | No |
| ENERGY STAR | Not stated |
| Noise | Not published |
| Capacity at saturation (90F, 90% RH) | 180 pints/day |
| Airflow | 210 CFM |
| Power | 646 W |
| Pump | 19.6 ft hose, 14.7 ft vertical lift |
| Size / weight | 22.8 x 13.7 x 17.3 in, 64.3 lb |
| Warranty | 6-year limited (refrigeration parts in later years) |
| Price tier | Pro (about $900 and up) |
Pros
- LGR performance
- Pump with 14.7 ft lift
- Tough housing
- 6-year limited warranty
Cons
- Pro price tier
- Noise not published
Spec sources (checked 2026-11-12): Amazon listing B07Q5YMP6R (Model Name Storm LGR Extreme).
Best efficient commercial unit
AlorAir Storm 80X Commercial Dehumidifier with Pump
The AlorAir Storm 80X is rated at 80 pints AHAM and 170 at saturation, with 200 CFM. AlorAir lists an efficiency of 2.28 L/kWh and a 607 W draw. It also has a pump and a 19.6 ft hose. Choose it over the Extreme if it will run for months and power cost matters.
| Model number | Storm 80X |
|---|---|
| Type | Commercial LGR (low grain refrigerant) |
| Capacity (AHAM test, 80F, 60% RH) | 80 pints/day |
| Coverage | Up to 2,100 sq ft (Amazon listing) |
| Built-in pump | Yes |
| Wi-Fi / app | No |
| ENERGY STAR | Not stated |
| Noise | Not published |
| Capacity at saturation (90F, 90% RH) | 170 pints/day |
| Airflow | 200 CFM |
| Efficiency | 2.28 L/kWh (maker figure on the listing) |
| Power | 607 W |
| Pump | 19.6 ft hose |
| Housing | Rotomolded polyethylene |
| Weight | 63.9 lb |
| Price tier | Pro (about $900 and up) |
Pros
- Listed at 2.28 L/kWh
- Pump
- Lower draw
Cons
- Slightly less capacity
- Efficiency is a maker figure
Spec sources (checked 2026-11-12): Amazon listing B0DH3G92CX (Model Number Storm 80X).
Best industrial dehumidifier for basement
AlorAir Sentinel HDi90 Basement and Crawl Space Dehumidifier with Pump
For a large basement that a 50 pint portable cannot keep dry, the AlorAir Sentinel HDi90 is an industrial dehumidifier for basement use rated at 90 pints AHAM and 198 at saturation, for up to 2,600 sq ft. It has a pump and works down to 33.8F.
| Model number | HDi90 |
|---|---|
| Type | Compressor (crawl space / basement, low temp) |
| Capacity (AHAM test, 80F, 60% RH) | 90 pints/day |
| Coverage | Up to 2,600 sq ft (maker claim) |
| Built-in pump | Yes |
| Wi-Fi / app | Not stated |
| ENERGY STAR | Not stated |
| Noise | Max 58 dB (Sylvane listing) |
| Low-temperature operation | Down to 33.8F (retailer listing) |
| Capacity at saturation (90F, 90% RH) | 198 pints/day |
| Airflow | 210 CFM |
| Warranty | 6-year limited (Amazon listing) |
| Price tier | Pro (about $900 and up) |
Pros
- High capacity
- Pump
- Low-temp operation
Cons
- Up to 58 dB (Sylvane)
- Pro price tier
Spec sources (checked 2026-11-11): Sylvane listing HDi90; AlorAir product spec PDF.
Best ducted commercial unit
Santa Fe Advance Dry110 Dehumidifier
Santa Fe's Advance Dry110 is a 110 pint unit with 370 CFM of airflow and dual exhaust outlets, listed for up to 3,600 sq ft. It can be ducted to reach several rooms and has a dew point cut-out. It suits finished commercial basements, storage rooms and small offices.
| Model number | Advance Dry110 (4047010) |
|---|---|
| Type | Whole-house (ducted or ventilating) |
| Capacity (AHAM test, 80F, 60% RH) | 110 pints/day |
| Coverage | Up to 3,600 sq ft (Amazon listing) |
| Built-in pump | No |
| Wi-Fi / app | No |
| ENERGY STAR | Not stated |
| Noise | Not published |
| Airflow | 370 CFM (Amazon listing) |
| Power | 480 W (Amazon listing) |
| Features | Dual exhaust outlets, ducting options, dew point cut-out, auto restart |
| Price tier | Pro (about $900 and up) |
Pros
- High airflow
- Ducting options
- Dew point cut-out
Cons
- Pro install for ducting
- Pro price tier
Spec sources (checked 2026-11-12): Amazon listing B0FKNNXJWL (Model Number 4047010).
Best whole-building option
Aprilaire E130 Whole-Home Dehumidifier
The Aprilaire E130 removes 130 pints a day at 80F (105 on ENERGY STAR's test) with 310 CFM and is listed for up to 7,200 sq ft. Ducted into an air handler, it can dry a whole small commercial building, and it is ENERGY STAR Most Efficient.
Heads up: Sold on Amazon as well as through HVAC contractors. Ducted installs should be done by a pro.
| Model number | E130 |
|---|---|
| Type | Whole-house (ducted or ventilating) |
| Capacity (AHAM test, 80F, 60% RH) | 130 pints/day |
| Coverage | Up to 7,200 sq ft (maker FAQ); Amazon listing says up to 7,200 sq ft |
| Built-in pump | No |
| Wi-Fi / app | No |
| ENERGY STAR | Yes |
| Noise | Not published |
| Airflow | 310 CFM (Amazon listing) |
| Weight | 98 lb |
| Sizing note | Aprilaire sizes by climate region and how airtight the home is; ask the installer to run its Dehumidifier Selection Assistant |
| ENERGY STAR test data | 105.0 pints/day, IEF 2.35 L/kWh, about 926 kWh/yr; meets ENERGY STAR Most Efficient (record for E130) |
| Price tier | Pro (about $900 and up) |
Pros
- ENERGY STAR Most Efficient
- Can be ducted
Cons
- 98 lb
- Needs an HVAC installer for ducting
Spec sources (checked 2026-11-12): Aprilaire dehumidifier FAQ (ppd and sq ft); Aprilaire E-series guide, Nov 2025 (ppd, weights); ENERGY STAR certified product record (E130); Amazon listing B094Q72F4B (AprilAire E130 Pro).
Warehouse dehumidifier
A warehouse dehumidifier is sized by a load calculation, not by square feet alone. Air leaking in through dock doors, people, wet goods and the building's volume all add moisture. Portable commercial units are listed for about 2,000 to 3,600 sq ft each, so large warehouses use several units or a ducted system designed by an HVAC engineer. Ask for a calculation that states the target humidity and the design outdoor conditions.
Commercial vs residential
| Residential portable | Commercial / industrial | |
|---|---|---|
| Capacity rating | DOE test at 65F | AHAM at 80F, plus saturation at 90F/90% |
| Duty cycle | Seasonal, intermittent | Continuous |
| Housing | Plastic shell | Rotomolded or metal, stackable |
| Drainage | Bucket, hose, optional pump | Pump or gravity hose standard |
| Low temperature | Many list a minimum around 38 to 41F and lose capacity in cool rooms | Many run near 33F |
| Price | Value to mid tier | Pro tier |
Buying guide: which commercial dehumidifier
| Job | Pick | Why |
|---|---|---|
| Flood or water damage drying | Storm LGR Extreme | LGR, GPP readout, pump |
| Large damp basement all season | Sentinel HDi90 | High capacity, low-temp |
| Office or retail basement, several rooms | Santa Fe Advance Dry110 | Ducting options |
| Whole small building with ducts | Aprilaire E130 | Efficient, ducted |
Many commercial dehumidifier for sale listings show only the saturation number. Find the AHAM figure before you compare prices. For restoration-specific LGR units, see our LGR dehumidifier guide.
Frequently asked questions
What's the difference between commercial and residential dehumidifiers?
Can I use a commercial dehumidifier at home?
How many pints for a warehouse?
Sources
- ENERGY STAR: Dehumidifier testing and capacity
- ENERGY STAR Certified Dehumidifiers dataset (data.energystar.gov)