AlorAir
AlorAir Sentinel HD55S: Specs & Research
AlorAir Sentinel HD55S is a crawl-space dehumidifier with manufacturer-reported 55 PPD AHAM capacity, 120 PPD maximum removal, coverage up to 1,300 sq ft, and a gravity-drain configuration.
Product research actions
Sentinel HD55S
Use the actions below to compare this model, open any available product page link, or view the official manufacturer source. This page does not represent a hands-on product review.
Quick specs
- AHAM removal
- 55 pints/day
- Maximum removal
- 120 pints/day
- Manufacturer max coverage
- 1,300 sq ft
- Built-in pump
- No
Verified specifications
- AHAM removal capacity
- 55 pints/day
- Maximum/saturation removal
- 120 pints/day
- Manufacturer-reported max coverage
- 1,300 sq ft
- Airflow
- 130 CFM
- Built-in pump
- No
- Drainage method
- Gravity drainage
- Operating temperature range
- 33.8-104 F
- Dimensions
- 19.2" L x 12.2" W x 13.3" H
- Weight
- 41.7 lb
- Voltage
- 115V
- Filter
- MERV-1
- Warranty
- 6-year limited; first 2 years full coverage
- Operating current
- 4.1 A
- DrySpace-estimated power draw
- 472 W
AHAM PPD vs maximum PPD
This product has both AHAM and maximum/saturation moisture-removal ratings in the verified database. Maximum or saturation PPD is typically measured under more humid conditions, while AHAM PPD is a more standardized moderate-condition rating. Compare both values, but do not treat maximum PPD alone as proof that a unit is the right fit for a specific crawl space.
Drainage and pump setup
- Built-in pump
- No
- Drainage method
- Gravity drainage
- Drain hose length
- Not verified
Because this model does not have a verified built-in pump, a suitable gravity-drain path may be required unless another external condensate solution is used. That can be fine when the unit can drain reliably downhill.
A pump configuration is not universally better than gravity drainage. The practical choice depends on the crawl-space layout, drain route, and where condensate can safely discharge.
Coverage and sizing context
Manufacturer-reported maximum coverage
The stored manufacturer-reported maximum coverage for this model is 1,300 sq ft. This is not a DrySpace sizing guarantee. Crawl-space height, sealing, climate, airflow, moisture load, and water intrusion can all affect whether a product is practical for a specific space.
Check this model against your crawl-space constraintsOperating-cost data
Estimated input power: 472 W
This is a DrySpace estimate derived from manufacturer electrical data, not manufacturer-published wattage.
Estimated by DrySpace from manufacturer-rated 4.1 A × 115 V.
Verification and source links
Data status
Specifications last verified: 2026-09-05
DrySpace leaves missing or conflicting information marked as not verified rather than choosing a value without support from the current product record.