AlorAir Helios MP55 vs AlorAir Sentinel HDi100 Whole-House Dehumidifier
Specs, prices, editor verdict, and who should buy which, compared side by side.
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AlorAir Helios MP55 (mid, $699.66) vs AlorAir Sentinel HDi100 Whole-House Dehumidifier (premium, $1,050). Different tools for different jobs (see the per-product details below).
Compared on 6 shared specs · same category (environment).
We have not scored these two head to head, so this page does not name a winner. The AlorAir Helios MP55 starts at $699.66 and the AlorAir Sentinel HDi100 Whole-House Dehumidifier at $1,050. The per-buyer recommendations below say who each one suits.
Side-by-side specs
| Spec | AlorAir Helios MP55 | AlorAir Sentinel HDi100 Whole-House Dehumidifier |
|---|---|---|
| price | $699.66 | $1,050 |
| type | Crawl space / basement dehumidifier | Whole-house / crawl-space dehumidifier (with condensate pump) |
| capacity | 120 pints/day (PPD) | 100 PPD at AHAM, up to 220 pints/day at saturation |
| coverage | Up to 1,500 sq ft | Up to 2,900 sq ft |
| drainage | Built-in pump + drain hose (continuous) | Integrated condensate pump, continuous drainage |
| certification | ENERGY STAR Most Efficient, ETL | cETL listed |
| warranty | 5 years | 6-year limited (first 2 years full coverage) |
AlorAir Helios MP55 also publishes: shipping
AlorAir Sentinel HDi100 Whole-House Dehumidifier also publishes: efficiency, dimensions
Who should buy which
Homeowners in humid climates, or anyone with a damp basement or crawl space, who wants to control humidity and mold at the source as part of a clean-air home. The built-in pump suits set-and-forget continuous drainage.
You only need to clean particulates from room air (get an air purifier instead), your space is already dry, or you want a small portable bedroom dehumidifier rather than a whole-crawl-space unit.
Homeowners protecting a large basement, crawl space, or whole-house envelope from moisture, mold, and wood rot who want set-and-forget operation with a built-in pump.
You only need to dry a single room or small crawl space (the lower-cost HDi65 or Helios units are a better fit), or you want true HEPA or carbon air purification rather than moisture control.
Go deeper
Frequently asked
Which is better, the AlorAir Helios MP55 or the AlorAir Sentinel HDi100 Whole-House Dehumidifier?
We have not scored these two head to head, so this page does not name a winner. The AlorAir Helios MP55 starts at $699.66 and the AlorAir Sentinel HDi100 Whole-House Dehumidifier at $1,050. The per-buyer recommendations below say who each one suits.
How much do they cost?
AlorAir Helios MP55: $699.66. AlorAir Sentinel HDi100 Whole-House Dehumidifier: $1,050. Prices are verified against the manufacturer; check the live links for current pricing.
Who should buy which one?
AlorAir Helios MP55: Homeowners in humid climates, or anyone with a damp basement or crawl space, who wants to control humidity and mold at the source as part of a clean-air home. The built-in pump suits set-and-forget continuous drainage. AlorAir Sentinel HDi100 Whole-House Dehumidifier: Homeowners protecting a large basement, crawl space, or whole-house envelope from moisture, mold, and wood rot who want set-and-forget operation with a built-in pump.
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