Argendon Shield 35P Crawl Space Dehumidifier
A compact 70-pint crawlspace and basement dehumidifier with a built-in pump that lifts condensate up to 19.6 ft.
Indoor humidity is the upstream lever for indoor air quality, and damp crawl spaces feed mold and dust mites into the air you breathe. The Argendon Shield 35P is the compact, pump-equipped unit that keeps a small crawl space or basement dry.
A lot of the indoor-air conversation is about purifiers, but in many homes the upstream problem is moisture: damp crawl spaces and basements breed mold and dust mites, and that air migrates up into living areas. A dehumidifier addresses the cause rather than filtering the symptom downstream.
The Argendon Shield 35P is the compact end of that category. It is rated to remove up to 70 pints per day at saturation (35 pints per day on the AHAM standard), covers spaces up to about 1,000 sq ft, and includes both a 6.5 ft gravity drain hose and a built-in condensate pump that lifts water up to 19.6 ft, so it can drain continuously without a tank to empty. It has auto-defrost down to its low-temperature limit, runs on R32 refrigerant, is ETL safety listed, and carries a 5-year limited warranty in a small 38-pound chassis.
The honest notes: independent sources price it differently (about $396 on Argendon's own store, about $373 on eBay), so we publish a range, not a single figure, and link the official page. We do not claim Energy Star for this specific model, its own spec sheet lists ETL safety certification only, and we keep this to moisture-control framing rather than any mold-remediation or health-outcome promise. If you need more capacity, the AlorAir Helios MP55 is the larger 120-pint, up-to-1,500 sq ft step up; the Shield 35P is the compact, lower-cost option for a small crawl space.
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).
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Argendon Shield 35P cross-shops across several editorial surfaces - the full brand catalog, the buyer-intent tags this item carries, the price band it qualifies for, and any execution playbook that uses it.
Argendon Shield 35P - buyer FAQ
Why use a crawl space dehumidifier for a healthy home?
Excess indoor humidity drives mold growth and dust mites, two of the most common indoor respiratory irritants, and damp crawl spaces and basements feed that moisture and air up into living areas. Controlling humidity at the source addresses the cause, where an air purifier only filters the symptom downstream. This is moisture-control hardware, not a medical or remediation device.
How much can the Shield 35P remove, and how big a space?
It removes up to 70 pints per day at saturation (35 pints per day on the AHAM standard) and covers spaces up to about 1,000 sq ft. A built-in pump lifts condensate up to 19.6 ft, so it drains continuously to a drain or outside rather than filling a tank.
What does it cost, and is it Energy Star?
It is listed at roughly $396 on Argendon's own store and about $373 on eBay, so we publish an approximate $373-396 range. It is ETL safety listed; we do not claim Energy Star for this specific SKU, because its spec sheet lists ETL certification only.
Argendon Shield 35P vs AlorAir Helios MP55?
Both are crawl space and basement dehumidifiers with built-in pumps. The Argendon Shield 35P is the compact, lower-cost unit for spaces up to about 1,000 sq ft. The AlorAir Helios MP55 is the larger 120-pint unit for up to about 1,500 sq ft. Size to your space and how wet it runs.
Argendon Shield 35P Crawl Space Dehumidifier
$373–$396 · Verified 2026-06-24
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