AlorAir Helios MP55 vs Argendon Shield 35P
Specs, prices, editor verdict, and who should buy which - compared side-by-side.
AlorAir Helios MP55 (mid, $699.66) vs Argendon Shield 35P (mid, $373–$396) - different tools for different jobs (see the per-product details below).
Compared on 6 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 Helios MP55 | Argendon Shield 35P |
|---|---|---|
| price | $699.66 | $373–$396 |
| type | Crawl space / basement dehumidifier | Crawl space / basement dehumidifier |
| capacity | 120 pints/day (PPD) | 70 pints/day saturation (35 pints/day AHAM) |
| coverage | Up to 1,500 sq ft | Up to 1,000 sq ft |
| drainage | Built-in pump + drain hose (continuous) | 6.5 ft gravity hose + built-in pump (19.6 ft lift) |
| certification | ENERGY STAR Most Efficient, ETL | ETL safety listed |
| warranty | 5 years | 5-year limited |
AlorAir Helios MP55 also publishes: shipping
Argendon Shield 35P also publishes: defrost, refrigerant, 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 with a small damp crawl space or basement (up to ~1,000 sq ft) who want set-and-forget continuous drainage via a built-in pump at a compact size and lower price.
Your space is larger or wetter (step up to the AlorAir Helios MP55), or you only need to filter room-air particulates (an air purifier addresses that instead).
Go deeper
Frequently asked
Which is better, the AlorAir Helios MP55 or the Argendon Shield 35P?
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 Helios MP55: $699.66. Argendon Shield 35P: $373 to $396. 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. Argendon Shield 35P: Homeowners with a small damp crawl space or basement (up to ~1,000 sq ft) who want set-and-forget continuous drainage via a built-in pump at a compact size and lower price.