AlorAir Sentinel HDi65S
#1 in Whole-homeFull review
For crawlspaces or basements without a floor drain where the water has to be pumped out; otherwise the cheaper HD55S does the same job.
Amazon $604.52 AlorAir $566.75$566.75
The AlorAir Sentinel HDi65S rates 3.4 among whole-home dehumidifiers; the Frigidaire 35-Pint FHDD3534Y1 rates 3.4 among medium ones. The Frigidaire 35-Pint FHDD3534Y1 costs $347.05 less ($219.70 vs $566.75).
Frigidaire 35-Pint FHDD3534Y1
#2 in MediumFull review
A mid-size, efficient Wi-Fi dehumidifier for a living area or a moderately damp basement with a floor drain.
Amazon $219.70$219.70
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.
Scores side by side
These two sit in different size classes (whole-home and medium), and each is scored against the reference points for its own class, so a rating says how well each does among its own size peers. How we rank explains each factor.
| Factor weight | AlorAir Sentinel HDi65S | Frigidaire 35-Pint FHDD3534Y1 |
|---|---|---|
| Overall rating | 3.4/5 | 3.4/5 |
| Value 30% | 87 $15.60 per pint/day | 64 $6.13 per pint/day |
| Efficiency 25% | 18 2.1 L/kWh | 51 2 L/kWh |
| Quiet 15% | 29 52 dB (maker rating) | 57 48 dB (maker rating) |
| Drainage 15% | 100 built-in pump drains up to a sink or window | 50 drains downhill through a hose |
| Warranty 10% | 50 2-year warranty | 0 1-year warranty |
| Smart 5% | 0 no app control | 100 Wi-Fi app control |
Specifications
| AlorAir Sentinel HDi65S | Frigidaire 35-Pint FHDD3534Y1 | |
|---|---|---|
| Performance | ||
| Capacity (2019 DOE) | 36.3 pints/day | 35.9 pints/day |
| Efficiency (IEF) | 2.1 L/kWh | 2 L/kWh |
| ENERGY STAR | Yes | Yes |
| Energy use | 379 kWh/year | 379 kWh/year |
| Coverage (maker) | 1,300 sq ft | - |
| Lowest operating temperature | 33.8 °F | 41 °F |
| Noise | 52 dB | 48 dB |
| Drainage and controls | ||
| Bucket | - | 13.6 pints |
| Built-in pump | Yes | No |
| Drain hose outlet | Yes | Yes |
| Wi-Fi app | No | Yes |
| Auto restart after power cut | Yes | Yes |
| Auto defrost | Yes | Yes |
| Build | ||
| Type | Whole-home | Portable |
| Refrigerant | R-32 | R-32 |
| Dimensions | 13.3 x 12.2 x 19.2 in | 19.8 x 14.7 x 11.1 in |
| Weight | 44 lb | 37 lb |
| Wheels | No | - |
| Warranty | 2 years | 1 years |
| Sealed-system warranty | 6 years | - |