AlorAir Sentinel HD55S
#3 in Whole-homeFull review
For DIYers drying a crawlspace or small basement with a floor drain who want a proven unit for a few hundred dollars.
Amazon $486.49$486.49
The AlorAir Sentinel HD55S is the better dehumidifier overall, rated 3.2 to 2.4. The AlorAir Sentinel HD55S leads on value and quiet. The Santa Fe Ultra70 wins on warranty. The AlorAir Sentinel HD55S costs $1,414.03 less ($486.49 vs $1,900.52).
Santa Fe Ultra70
#9 in Whole-homeFull review
For condos, small homes and tight mechanical closets that need a ducted unit; bigger homes get more for the money from larger units.
Amazon $1,900.52$1,900.52
Prices were last checked October 22, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the AlorAir Sentinel HD55S for value ($13.39 per pint/day vs $36.23 per pint/day) and quiet (52 dB (maker rating) vs 55.3 dB (maker rating)).
- Choose the Santa Fe Ultra70 for warranty (5-year warranty vs 2-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every whole-home dehumidifier; a clear win is highlighted. How we rank explains each one.
| Factor weight | AlorAir Sentinel HD55S | Santa Fe Ultra70 |
|---|---|---|
| Overall rating | 3.2/5 | 2.4/5 |
| Value 30% | 95 $13.39 per pint/day | 13 $36.23 per pint/day |
| Efficiency 25% | 18 2.1 L/kWh | 16 2 L/kWh |
| Quiet 15% | 29 52 dB (maker rating) | 5 55.3 dB (maker rating) |
| Drainage 15% | 50 drains downhill through a hose | 50 drains downhill through a hose |
| Warranty 10% | 50 2-year warranty | 100 5-year warranty |
| Smart 5% | 0 no app control | 0 no app control |
Specifications
| AlorAir Sentinel HD55S | Santa Fe Ultra70 | |
|---|---|---|
| Performance | ||
| Capacity (2019 DOE) | 36.3 pints/day | 52.5 pints/day |
| Efficiency (IEF) | 2.1 L/kWh | 2 L/kWh |
| ENERGY STAR | Yes | No |
| Energy use | 379 kWh/year | - |
| Coverage (maker) | 1,300 sq ft | 1,800 sq ft |
| Lowest operating temperature | 33.8 °F | 49 °F |
| Noise | 52 dB | 55.3 dB |
| Drainage and controls | ||
| Built-in pump | No | No |
| Drain hose outlet | Yes | Yes |
| Wi-Fi app | No | No |
| Auto restart after power cut | Yes | - |
| Auto defrost | Yes | Yes |
| Build | ||
| Type | Whole-home | Whole-home |
| Refrigerant | R-32 | R-454B |
| Dimensions | 13.3 x 12.2 x 19.2 in | 12 x 12 x 28 in |
| Weight | 44 lb | 55 lb |
| Wheels | No | No |
| Warranty | 2 years | 5 years |
| Sealed-system warranty | 6 years | 6 years |