Dehumidifiers / AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) vs Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)
AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump)
$1147.11
VSMidea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)
$299.99
AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) vs Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)
AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump)
The cold-crawlspace answer: 33.8°F, hot-gas defrost, 6-year cover, no ENERGY STAR listing.
Wins overall by 0.7 points
Quick Verdict
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) is the stronger all-round pick, ahead by 0.7 points. The cold-crawlspace answer: 33.8°F, hot-gas defrost, 6-year cover, no ENERGY STAR listing.
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) and Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) are both closely matched dehumidifier models, and the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) is $847.10 cheaper than the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) ($299.99 vs $1,147.11). On Cold-Room Performance, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) leads (9.0 vs 4.0/10) — what happens in a 50-55°F basement, garage or crawlspace. Compressor coils frost below roughly 65°F and auto-defrost buys back the coil at the cost of runtime; desiccant rotors and hot-gas-defrost units do not care. The single most common mis-buy in the category. On Build & Warranty, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) leads (9.0 vs 5.5/10) — coil and cabinet construction, filter grade, and above all the warranty on the sealed system — the compressor is the part that fails and the part most portables cover for only twelve months. On Moisture Removal, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) leads (9.0 vs 7.5/10) — actual water pulled out of the air per day at a condition a home experiences, judged against the DOE-verified figure rather than the coverage claim on the box. Overall, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores 7.1/10 across our 8 scoring categories versus 6.4/10 for the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A). Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) | Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) |
|---|---|---|
| Price | $1147.11 | $299.99 |
| Release Year | 2019 | 2025 |
| Rated Capacity (and Which Standard) | AlorAir publishes both numbers, which is more than most: "198 PPD at Saturation, 90 Pints (AHAM)". The AHAM figure is at 80°F/60% RH — the pre-2019 portable condition — so a "90 pint" AlorAir is NOT twice a "50 pint" Frigidaire; the two are measured 15°F apart | 50 pints/day on the 2019 DOE scale. Watch the legacy listings: the older Cube Amazon listing still carries "ENERGY STAR Most Efficient 2022" and "2023" in its title, and the current MAD50PS1QWT-A/MAD50S1QWT-A are recorded as NOT meeting Most Efficient criteria in ENERGY STAR's 2026 database |
| ENERGY STAR / DOE Verified Capacity ( pints/day) | None. The Sentinel HDi90 does not appear in the ENERGY STAR Certified Dehumidifiers database — AlorAir's only certified models there are the Helios D35, Sentinel HD55S and Sentinel Pro35X. This matters because amgair.com's listing for the HDi90 states "Energy Star listed", which the database does not support | 49.67 pints/day per Appendix X1, IEF 2.01 L/kWh, 515 kWh/yr, HFC-32 refrigerant, 6.4 oz charge — Midea's own ENERGY STAR filing for MAD50PS1QWT-A, on market 15 October 2025 |
| Technology & Refrigerant | Compressor (refrigerant), R32, 5.56 A at 115V, 210 CFM / 350 CMH, COP quoted by AlorAir as 2.69 L/kWh | Compressor (refrigerant), HFC-32 (R-32), with an integral condensate pump |
| Low-Temperature Operation & Defrost | 33.8°F to 104°F with automatic hot-gas defrost — the widest usable range of any compressor unit here and the entire reason it costs four times a portable. In a 45-55°F crawlspace this is the compressor unit that keeps working | Midea publishes no minimum operating temperature for the Cube on its own product page. Auto-defrost is present. Treat it as a 41°F-floor compressor unit like its peers, and expect defrost losses below 65°F |
| Claimed Coverage | 2,600 sq ft (AlorAir and Amazon); amgair.com expresses the same machine as "up to 15,000 cubic feet" | 4,500 sq ft (Midea, Home Depot, Lowe's, Walmart — consistent across sources for once). Note this is the same DOE capacity Frigidaire sells without any square-footage claim at all |
| Tank Capacity & Refill Interval | None — there is no bucket. It is pump-drained only, by design. That removes the emptying problem entirely and creates a hard dependency on the pump | Sources conflict. Walmart's spec table for MAD50PS1QWT-A says "7.5 gallons"; Midea's own product pages publish no gallon figure at all, only the marketing phrase "up to 3 times more water tank capacity than traditional dehumidifiers". Whatever the true figure, the extended-mode tank is the largest here and is the main reason to buy the Cube |
| Continuous Drainage (Hose, Gravity, Pump Lift) | Heavy-duty built-in condensate pump with drain hose. AlorAir publishes no lift height for the HDi90's pump. Pump-only means a pump failure stops the machine, unlike a bucket unit | Built-in pump with the hose included — the only sub-$300 unit here with a pump. The tank also detaches to sit over a sink or drain. Midea does not publish a pump lift height |
| ENERGY STAR Status | NOT certified — the HDi90 is absent from the ENERGY STAR database despite a retailer listing describing it as Energy Star listed | Yes, currently certified. NOT ENERGY STAR Most Efficient for 2026 despite listing titles that still cite Most Efficient 2022/2023 |
| Annual Running Cost | Not published as an annual figure. At 5.56 A / 115V (about 639W) running the long hours a crawlspace unit runs, this is a several-hundred-kWh-per-year machine; AlorAir's 2.69 L/kWh COP is respectable but there is no ENERGY STAR kWh/yr number to check it against | About $88/yr (515 kWh x $0.17/kWh) |
| Noise | <58 dBA (AlorAir). Loudest here, which is acceptable under a floor and not in a bedroom | "Approximately 54 dB" per Walmart's spec table. Midea publishes no dB figure on its own store page |
| Warranty (incl. Sealed System) | Sources conflict on length: AlorAir's own page and the Amazon listing say "6-Year Limited Warranty - First 2 Years Full Coverage"; a reseller listing for the same ASIN says 5 years. Either way it is the longest cover in this comparison and it does include the sealed system | Sources conflict: Midea's own store page says 1 year; Walmart's listing for the same model number says "2-year parts and labor warranty". No sealed-system term is published either way |
| Recall History | No CPSC recall found for AlorAir | No CPSC recall found for Midea-branded dehumidifiers. Midea is the OEM behind a number of other US dehumidifier brands — the discontinued Toshiba TDDP5013ES2, for instance, is serviced through Midea's parts catalogue |
| Warranty | 72 months | 12 months |
| Colors | Blue | White, Grey |
Category Scores
Capacity-Claim Honesty
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) leads clearly here, 7.5 against 7.0 — a 0.5-point margin on this category's trap dimension. Since the DOE changed the test condition from 80°F/60% RH to 65°F/60% RH in 2019, the same machine that was a '70 pint' is now a '50 pint' — and manufacturers freely mix the two scales, plus a third 'saturation' figure taken at 95°F/90% RH. A high score means the pint number on the box matches the DOE Appendix X1 figure the manufacturer filed with ENERGY STAR. A low score means the marketing number is measured somewhere the buyer's house never is.. If that is what you are buying for, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) does not close the gap elsewhere.
Moisture Removal
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) leads clearly here, 9.0 against 7.5 — a 1.5-point margin on actual water pulled out of the air per day at a condition a home experiences, judged against the DOE-verified figure rather than the coverage claim on the box. If that is what you are buying for, the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) does not close the gap elsewhere.
Cold-Room Performance
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) leads clearly here, 9.0 against 4.0 — a 5.0-point margin on what happens in a 50-55°F basement, garage or crawlspace. Compressor coils frost below roughly 65°F and auto-defrost buys back the coil at the cost of runtime; desiccant rotors and hot-gas-defrost units do not care. The single most common mis-buy in the category. If that is what you are buying for, the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) does not close the gap elsewhere.
Drainage & Tank Practicality
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) leads clearly here, 9.0 against 8.5 — a 0.5-point margin on tank volume measured against daily output, whether a hose is in the box, whether gravity drainage needs the unit propped up, and whether there is a real pump and how high it lifts. If that is what you are buying for, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) does not close the gap elsewhere.
Running Cost
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) leads clearly here, 5.0 against 4.0 — a 1.0-point margin on the kWh/yr on the ENERGY STAR certification and what it costs at the meter. On a machine that runs most of the year this dominates total ownership cost — often a third of the purchase price annually. If that is what you are buying for, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) does not close the gap elsewhere.
Quietness
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) leads clearly here, 5.0 against 3.5 — a 1.5-point margin on measured dB where published, weighted by where the machine actually lives — a 58 dBA crawlspace unit under a floor is fine, a 54 dB cube next to a desk is not. If that is what you are buying for, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) does not close the gap elsewhere.
Build & Warranty
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) leads clearly here, 9.0 against 5.5 — a 3.5-point margin on coil and cabinet construction, filter grade, and above all the warranty on the sealed system — the compressor is the part that fails and the part most portables cover for only twelve months. If that is what you are buying for, the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) does not close the gap elsewhere.
Value for Money
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) leads clearly here, 7.5 against 6.5 — a 1.0-point margin on purchase price plus multi-year electricity against verified pints removed and how long the warranty protects the compressor. If that is what you are buying for, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) does not close the gap elsewhere.
Best For
Choose the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) if…
- • Cold-Room Performance matters most to you — the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores 9.0/10 here (what happens in a 50-55°F basement, garage or crawlspace. Compressor coils frost below roughly 65°F and auto-defrost buys back the coil at the cost of runtime; desiccant rotors and hot-gas-defrost units do not care. The single most common mis-buy in the category).
- • Build & Warranty matters most to you — the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores 9.0/10 here (coil and cabinet construction, filter grade, and above all the warranty on the sealed system — the compressor is the part that fails and the part most portables cover for only twelve months).
- • Moisture Removal matters most to you — the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores 9.0/10 here (actual water pulled out of the air per day at a condition a home experiences, judged against the DOE-verified figure rather than the coverage claim on the box).
- • Your main use case is crawl-space or cold-spaces.
Choose the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) if…
- • Quietness matters most to you — the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) scores 5.0/10 here (measured dB where published, weighted by where the machine actually lives — a 58 dBA crawlspace unit under a floor is fine, a 54 dB cube next to a desk is not).
- • Running Cost matters most to you — the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) scores 5.0/10 here (the kWh/yr on the ENERGY STAR certification and what it costs at the meter. On a machine that runs most of the year this dominates total ownership cost — often a third of the purchase price annually).
- • You want to spend less — it's $847.10 cheaper.
- • Your main use case is large-room.
Pros & Cons
AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump)
Pros
- +33.8°F minimum with hot-gas defrost — the only compressor unit here that genuinely earns a cold crawlspace
- +Publishes both saturation and AHAM capacity side by side instead of quoting only the flattering one
- +6-year limited warranty (first 2 years full) against 1 year from every portable here
- +No bucket to empty, ever, and it can be hung off the joists out of the mud
Cons
- −amgair.com's listing calls it "Energy Star listed"; it is not in the ENERGY STAR certified database — only three other AlorAir models are
- −"90 pints" is an AHAM 80°F figure and is not comparable to the 50-pint DOE figures of the portables it will be cross-shopped against
- −Pump-only drainage means no fallback if the pump fails
- −<58 dBA and no published annual energy figure, on a machine that runs nearly continuously
- −Warranty is published as both 5 and 6 years for the same ASIN, and the stock filter is only MERV-1
Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)
Pros
- +Built-in pump and hose at $299.99 — the Honeywell equivalent lists at $419.95
- +Far and away the biggest tank in this comparison, which is the difference between emptying it three times a day and barely at all
- +Nested mode makes it the smallest floor footprint of any 50-pint here (about 14.5 in square)
- +Verified 49.67 pints/day DOE, with a 515 kWh/yr figure you can budget against
Cons
- −Amazon listing titles still advertise "ENERGY STAR Most Efficient 2022/2023" while the current SKU is recorded as not meeting Most Efficient criteria
- −Warranty is published as 1 year by Midea and 2 years by Walmart for the same model number
- −Midea publishes no tank gallonage, no dB figure, no pump lift height and no minimum operating temperature on its own pages
- −54 dB is the loudest of the mainstream 50-pints here, and the cube shape puts the outlet at ear height on a desk
- −$88/yr running cost is no better than the cheaper Frigidaire
Shop by Need
FAQs
Is the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) or Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) better overall?+
Based on our 8-category scoring, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Cold-Room Performance, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) or the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)?+
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores higher on Cold-Room Performance (9.0/10 vs 4.0/10) — what happens in a 50-55°F basement, garage or crawlspace. Compressor coils frost below roughly 65°F and auto-defrost buys back the coil at the cost of runtime; desiccant rotors and hot-gas-defrost units do not care. The single most common mis-buy in the category.
Which is better for Build & Warranty, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) or the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)?+
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores higher on Build & Warranty (9.0/10 vs 5.5/10) — coil and cabinet construction, filter grade, and above all the warranty on the sealed system — the compressor is the part that fails and the part most portables cover for only twelve months.
Which is better for Moisture Removal, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) or the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)?+
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) scores higher on Moisture Removal (9.0/10 vs 7.5/10) — actual water pulled out of the air per day at a condition a home experiences, judged against the DOE-verified figure rather than the coverage claim on the box.
Which is better for Quietness, the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) or the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)?+
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) scores higher on Quietness (5.0/10 vs 3.5/10) — measured dB where published, weighted by where the machine actually lives — a 58 dBA crawlspace unit under a floor is fine, a 54 dB cube next to a desk is not.
Is the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) worth the price difference over the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)?+
The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) is the cheaper option at $299.99 versus $1,147.11. Whether the pricier model is "worth it" depends on how much you value its lead in Cold-Room Performance.
Which is better suited to my use case?+
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) is the better fit if you mainly care about crawl-space or cold-spaces. The Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) is the better fit for large-room.
What's the warranty on the AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) vs the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A)?+
The AlorAir Sentinel HDi90 Crawl Space Dehumidifier (built-in pump) ships with a 72-month warranty; the Midea Cube 50-Pint Smart Dehumidifier with Built-in Pump (MAD50PS1QWT-A) ships with a 12-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
GE ADSE50XWT 50-Pint Smart Dehumidifier with Built-in Pump — $299.00
Premium Option
AprilAire E070 70-Pint Crawl Space / Whole-House Dehumidifier — $1441.00
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.