Details come from the older review, the maker’s claims and the Amazon listing, checked on October 12, 2026. The listing is now named Sentinel HDi90. Output, noise and warranty figures are maker claims or come from the older review and were not retested.
The AlorAir 198PPD is a big, tough dehumidifier for crawl spaces and wet basements. Here is what the numbers mean, what it costs now and how it compares.
Table of Contents
What You Get
Price on Amazon: $1,032.40 | 3.8 stars from 508 ratings (checked October 12, 2026)
Design and Fit
The AlorAir 198PPD is a heavy-duty unit built for crawl spaces and wet basements. The older review said it covers up to 2,600 square feet and can serve homes, shops and light commercial space. Its listing name has changed to Sentinel HDi90, and the Amazon version is sold with a pump.
Looking ahead, crawl space and basement dehumidifiers like the AlorAir 198PPD are moving toward built-in pumps, smart controls and long warranties. Prices for heavy-duty units have been climbing, and the same maker now sells several versions with similar names. The catch is that near-identical model names make it easy to pay for the wrong one.
Features and Performance
- Output. 198 pints a day at saturation, or about 90 pints at normal test conditions, per the older review.
- Coverage. Up to 2,600 square feet, per the maker.
- Pump. The listing says it has a heavy duty condensate pump.
- Auto defrost. The older review said it works down to about 36 degrees Fahrenheit.
- Corrosion protection. An epoxy coating on the coils, per the older review.
- Efficiency. The older review gave 3.6 amps, 2.4 liters per kilowatt hour.
- Remote. Sold separately, per the older review.
- Warranty. The listing says 6 years limited. The older page said 5.
The risk to watch is the pint number. The 198 pints a day is a saturation figure at 90 degrees and 90 percent humidity. The same maker lists the unit at about 90 pints at normal test conditions, and for 2,600 square feet. A crawl space with standing water will not be fixed by any dehumidifier. Expect more large units sold on the big number. Check the real rating, the pump and the warranty length, and fix the water source.
Noise and Upkeep
The older review gave 58 dBA, which means it belongs in a basement or a crawl space, not a bedroom. Clean the filter on schedule and check the drain and the pump each season. See how to choose the right size dehumidifier before you pay for pints you will not use.
AlorAir vs Other Heavy-Duty Units
The AlorAir LGR 85 is a similar-class unit, see our AlorAir LGR 85 review. For more in this class, read our guide to commercial dehumidifiers and the list of crawl space dehumidifiers. For a home basement, a normal unit is usually enough, see best dehumidifiers for basements.
Prices and Alternatives on Amazon
Prices and ratings were checked on Amazon on October 12, 2026.
Price on Amazon: $1,032.40 | 3.8 stars from 508 ratings (checked October 12, 2026)
The ALORAIR Sentinel HDi90 is the model reviewed here. The listing calls it a 198 pint a day (at saturation) crawlspace dehumidifier with a pump, auto defrost, 2,600 square feet, a drain hose and a 6-year limited warranty. It has a 3.8 rating from 508 ratings.
Price on Amazon: $837.69 | 3.5 stars from 316 ratings (checked October 12, 2026)
The ALORAIR 198 PPD without a pump is listed for up to 2,600 square feet with automatic defrost and memory start. It has a 3.5 rating from 316 ratings and costs about $190 less.
Price on Amazon: $499.36 | 4.2 stars from 1,222 ratings (checked October 12, 2026)
The ALORAIR Sentinel HD55 is listed at 113 pints and 1,200 square feet with auto defrost and a drain hose. It has a 4.2 rating from over 1,200 ratings.
Price on Amazon: $396.19 | 4.0 stars from 779 ratings (checked October 12, 2026)
The ALORAIR 70 PPD is listed for 1,000 square feet with a pump and auto defrost. It has a 4.0 rating from 779 ratings.
Pros and Cons
Pros: very large capacity for wet spaces; auto defrost for cold crawl spaces; condensate pump on the Amazon version; corrosion protection; long warranty; good customer service, per the older review.
Cons: high price; loud at 58 dBA; remote sold separately; the 198 pint number is at saturation; mixed Amazon rating (3.8).
FAQ
Does the AlorAir 198PPD really remove 198 pints?
Only at saturation (90 degrees and 90 percent humidity). The maker lists about 90 pints at normal test conditions.
Does it have a pump?
The Amazon listing for the HDi90 says it does. The older 198 PPD listing has no pump.
Is it too loud for a living space?
The older review measured 58 dBA, so yes. Use it in a crawl space, a basement or a garage.
Final Word
The AlorAir 198PPD is a strong tool for a wet crawl space or a large wet basement. For a normal damp home, the Sentinel HD55 or a standard 50-pint unit is a better fit.
What happens next: expect more units with pumps, auto defrost and smart monitors, sold at higher prices. For a large crawl space or wet basement, a heavy-duty unit is still the right class, but check the noise and the power draw.
Related Guides
Keep going with crawl space dehumidifiers, commercial dehumidifiers, AlorAir LGR 85 review, best dehumidifiers for basements and how to choose the right size dehumidifier.
