Basement / crawlspace · ALORAIR

ALORAIR HDi120 Dehumidifier

Dehumidifier

Updated October 2026

Quick verdict

A practical choice for sealed crawl spaces and damp basements.

Strength
Rated for 3300 square feet.
Trade-off
Needs regular cleaning to stay hygienic.
Right buyer
Sealed crawl spaces and damp basements.
Room coverage
3300 square feet
Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Why it matters

The ALORAIR HDi120 Dehumidifier is a crawl space and basement dehumidifier, rated for 3300 square feet.

Aim for 40 to 60 percent relative humidity indoors: drier air irritates airways and skin, wetter air feeds dust mites and mold.

The listing names a built-in condensate pump.

A condensate pump pushes water up and out through a hose, to a sink, a window or a drain above floor level, so the unit never stops for a full bucket.

Its rated area of 3,300 square feet is above the middle of the range we cover: 53 of the 99 dehumidifiers with a stated figure come in lower, and the range runs from 110 square feet to 7,500 square feet.

Price-wise it sat in the dearest third of the 25 basement / crawlspace models we cover when we checked; the button shows today's price.

It qualifies for our lists Best Dehumidifiers for Basements, Best Crawl Space Dehumidifiers, where it is ranked against every model that meets the same rule.

Compared with the ALORAIR Sentinel HD90 Dehumidifier: rated room size 3300 square feet here vs 2600 square feet.

Who it's for, and who should skip it

Good fit if

  • Sealed crawl spaces and damp basements
  • Owners who can run a drain hose

Look elsewhere if

  • Rooms far larger than its rating

Pros and cons

Pros

  • Rated for 3300 square feet

Cons

  • Needs regular cleaning to stay hygienic

Limitations to weigh

  • Not stated on the ALORAIR HDi120 Dehumidifier listing: pints removed per day, bucket size, power draw, airflow. Ask the seller or check the manual before relying on it.

Specifications

The bracket shows where each figure comes from.

Model numberSentinel HDi120Retailer
Room coverage3300 square feetRetailer
Capacity235 pintsRetailer

Alternatives worth comparing

More dehumidifiers we cover

All dehumidifiers, compared in one table · Every ALORAIR product we cover

Final verdict

A practical choice for sealed crawl spaces and damp basements. Confirm the model it fits before ordering.

Where to buy

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

What size space is the ALORAIR HDi120 Dehumidifier rated for?
3300 square feet, per the listing. Drafty rooms, high ceilings and open stairways need more capacity than the rating suggests.