AlorAir Sentinel WHD 100 Whole-House Dehumidifier vs AlorAir Sentinel WHD 120 Whole-House Dehumidifier
Specs, prices, editor verdict, and who should buy which - compared side-by-side.
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AlorAir Sentinel WHD 100 Whole-House Dehumidifier (premium, $1,399) vs AlorAir Sentinel WHD 120 Whole-House Dehumidifier (premium, $1,999) - different tools for different jobs (see the per-product details below).
Compared on 11 shared specs · same category (environment).
These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.
Side-by-side specs
| Spec | AlorAir Sentinel WHD 100 Whole-House Dehumidifier | AlorAir Sentinel WHD 120 Whole-House Dehumidifier |
|---|---|---|
| price | $1,399 | $1,999 |
| type | Ducted whole-house dehumidifier with fresh air damper | Ducted whole-house / basement / crawl-space dehumidifier |
| capacity | 90 PPD at AHAM (80 F, 60% RH); 70 PPD at DOE whole-house (73 F, 60% RH) | 104 PPD at AHAM (80 F, 60% RH); 85 PPD at DOE whole-house (73 F, 60% RH) |
| coverage | Up to 2,300 sq ft | Up to 3,000 sq ft |
| airflow | 229 to 309 CFM as listed by the brand, ducted | 229 to 309 CFM, multiple duct mounting options |
| filter | MERV-10 | MERV-10 |
| efficiency | 2.6 L/kWh AHAM (2.2 L/kWh DOE), R32 refrigerant, auto defrost | 2.6 L/kWh AHAM (2.4 L/kWh DOE), SLGR, R32 refrigerant, auto defrost |
| sound | 55 dBA (manufacturer-stated) | 62 dBA sound pressure level (manufacturer-stated) |
| power | 115V / 5.9 A | 115V / 6.8 A |
| certification | cETL (brand-stated) | cETL (brand-stated) |
| warranty | 6-year limited, first 2 years full coverage (per The Dry Air) | 6-year limited, first 2 years full coverage (per The Dry Air) |
| dimensions | 22.64 x 14.65 x 19.88 in; 89.07 lb (as listed by the brand) | 22.64 x 14.65 x 19.88 in; 89.07 lb |
Who should buy which
A ducted or duct-ready home up to 2,300 sq ft that wants whole-house humidity control with MERV-10 filtration on the airstream and a fresh air damper, sized from the 70 PPD DOE rating rather than the 90 PPD AHAM headline.
Your home is larger than 2,300 sq ft (the WHD 120 covers up to 3,000 sq ft), there is no ductwork and no appetite for an install project (the standalone Sentinel HDi100 at $1,050 covers 2,900 sq ft), or you only need to dry a single room or a small crawl space.
Homeowners conditioning a whole-house, basement, or sealed crawl-space envelope up to 3,000 sq ft who want ducted, set-and-forget humidity control with MERV-10 filtration on the airstream, installed in a mechanical space away from living areas.
Your space has no ductwork and you do not want an install project (the standalone Sentinel HDi100 at $1,050 covers 2,900 sq ft), your crawl space is small (Helios MP55, $699.66), or you expect HEPA-grade air purification, which this is not.
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Frequently asked
Which is better, the AlorAir Sentinel WHD 100 Whole-House Dehumidifier or the AlorAir Sentinel WHD 120 Whole-House Dehumidifier?
They are closely matched on our scoring, so the right pick comes down to your priorities. The verdict and spec table above compare them on price, features, and who each one suits.
How much do they cost?
AlorAir Sentinel WHD 100 Whole-House Dehumidifier: $1,399. AlorAir Sentinel WHD 120 Whole-House Dehumidifier: $1,999. Prices are verified against the manufacturer; check the live links for current pricing.
Who should buy which one?
AlorAir Sentinel WHD 100 Whole-House Dehumidifier: A ducted or duct-ready home up to 2,300 sq ft that wants whole-house humidity control with MERV-10 filtration on the airstream and a fresh air damper, sized from the 70 PPD DOE rating rather than the 90 PPD AHAM headline. AlorAir Sentinel WHD 120 Whole-House Dehumidifier: Homeowners conditioning a whole-house, basement, or sealed crawl-space envelope up to 3,000 sq ft who want ducted, set-and-forget humidity control with MERV-10 filtration on the airstream, installed in a mechanical space away from living areas.
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