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
The Frigidaire 35-Pint FHDD3534Y1 rates 3.4 among medium dehumidifiers; the AlorAir Sentinel HD55S rates 3.2 among whole-home ones. The Frigidaire 35-Pint FHDD3534Y1 costs $266.79 less ($219.70 vs $486.49).
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
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 (medium and whole-home), 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 | Frigidaire 35-Pint FHDD3534Y1 | AlorAir Sentinel HD55S |
|---|---|---|
| Overall rating | 3.4/5 | 3.2/5 |
| Value 30% | 64 $6.13 per pint/day | 95 $13.39 per pint/day |
| Efficiency 25% | 51 2 L/kWh | 18 2.1 L/kWh |
| Quiet 15% | 57 48 dB (maker rating) | 29 52 dB (maker rating) |
| Drainage 15% | 50 drains downhill through a hose | 50 drains downhill through a hose |
| Warranty 10% | 0 1-year warranty | 50 2-year warranty |
| Smart 5% | 100 Wi-Fi app control | 0 no app control |
Specifications
| Frigidaire 35-Pint FHDD3534Y1 | AlorAir Sentinel HD55S | |
|---|---|---|
| Performance | ||
| Capacity (2019 DOE) | 35.9 pints/day | 36.3 pints/day |
| Efficiency (IEF) | 2 L/kWh | 2.1 L/kWh |
| ENERGY STAR | Yes | Yes |
| Energy use | 379 kWh/year | 379 kWh/year |
| Coverage (maker) | - | 1,300 sq ft |
| Lowest operating temperature | 41 °F | 33.8 °F |
| Noise | 48 dB | 52 dB |
| Drainage and controls | ||
| Bucket | 13.6 pints | - |
| Built-in pump | No | No |
| Drain hose outlet | Yes | Yes |
| Wi-Fi app | Yes | No |
| Auto restart after power cut | Yes | Yes |
| Auto defrost | Yes | Yes |
| Build | ||
| Type | Portable | Whole-home |
| Refrigerant | R-32 | R-32 |
| Dimensions | 19.8 x 14.7 x 11.1 in | 13.3 x 12.2 x 19.2 in |
| Weight | 37 lb | 44 lb |
| Wheels | - | No |
| Warranty | 1 years | 2 years |
| Sealed-system warranty | - | 6 years |