Best Basement Dehumidifier (50 Pint, 2019 Standard)
The 50-pint class (current 2019-standard rating) is roughly the modern equivalent of what used to be marketed as a "70-pint" unit before 2019 — see our full 50-vs-70 breakdown for the exact figures. It suits wet basements and crawlspaces per AHAM's chart. We rank by ENERGY STAR certification, low-temperature operation, and honest drawbacks — price BANDS only, never exact prices.
Midea MAD50S1WWB-equivalent 50-pint
50-pint (2019 DOE rating), ~3,000-4,000 sq ft wet, ENERGY STAR Most Efficient, built-in pump, smart app + Alexa
Carries the ENERGY STAR 'Most Efficient' distinction (a higher bar than base ENERGY STAR) at the current 50-pint (2019) rating, with smart-home integration.
Best for: Wet basements or crawlspaces per the AHAM chart, where efficiency matters because the unit runs often
Watch out: This 50-pint (2019) unit is the rough equivalent of what was marketed as a '70-pint' machine before 2019 — if you're replacing an old 70-pint unit, this is likely the right size, not a downgrade, but confirm against your actual square footage and dampness level, not just the number.
Check price on AmazonhOmeLabs 1871 (50-pint)
50-pint (2019 DOE rating), ~4,500 sq ft, continuous drain hose, washable filter, 24-hour timer
A widely-available 50-pint (2019) unit with a large advertised square-footage claim at a lower price than the smart-connected competitors.
Best for: Budget buyers with a large damp basement who don't need app control
Watch out: The '4,500 sq ft' coverage claim on the box assumes a lighter dampness level than 'wet' — cross-check against the AHAM sizing table by actual moisture condition, not just square footage, before buying.
Check price on AmazonFrigidaire FFAP5033U1 (50-pint)
50-pint (2019 DOE rating), ~4,500 sq ft, ENERGY STAR certified, built-in pump, low-temperature operation
ENERGY STAR-certified 50-pint (2019) unit rated for low-temperature basement operation, which many budget compressor units are not.
Best for: Cold basements (below ~65°F) where standard compressor dehumidifiers can frost over
Watch out: Low-temperature-rated compressor units cost more than standard models — if your basement stays above ~65°F year-round, you likely don't need this feature and could save with a standard-range unit.
Check price on AmazonNeed whole-home or ducted instead?
If you're covering an entire basement or main floor and want one unit tied into ductwork rather than several portable units, whole-home dehumidifiers use a SEPARATE DOE product class and pint scale — see our conversion index for the whole-home-specific old-to-new figures before comparing a whole-home rating to a portable one.
Ultra-Aire Ultra-Aire XT105 (~85-pint)
~85-pint whole-home (2019 DOE rating, whole-home class), ducted or standalone, MERV-13 filtration, drain pump
A whole-home ducted dehumidifier that can tie into existing ductwork to condition an entire basement or main floor from one unit.
Best for: Whole-house humidity control instead of running several portable units
Watch out: Whole-home units use a SEPARATE DOE product class and pint scale from portable units (see our conversion table) — a whole-home '85-pint' is not directly comparable to a portable '85-pint' rating, and installation typically needs a professional.
Check availability on AmazonSanta Fe Santa Fe Classic (~110-pint)
~110-pint whole-home (2019 DOE rating), crawlspace/basement rated, MERV-8 filter, corrosion-resistant coil
A crawlspace-rated whole-home unit built for continuous, unattended operation in high-moisture under-house environments.
Best for: Crawlspaces and large basements needing continuous, heavy-duty moisture removal
Watch out: Premium price point and typically installed by a professional; verify the current listing states the 2019-standard whole-home pint class, since older stock may still show pre-2019 numbers.
Check availability on AmazonSizing note
50-pint (2019 standard) suits roughly 2,500-4,000+ sq ft depending on dampness level — see How Many Pints Do I Need for My Basement? for the complete AHAM breakdown by square footage and moisture level, and confirm your basement's actual ceiling height, since AHAM's chart assumes 8 feet.