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, a gravity-drain configuration.
Product summary
Sentinel HD55S
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, a gravity-drain configuration. This page uses verified product data already stored by DrySpace Research and 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 moisture removal
- 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
- Not verified
- 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 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.