
AlorAir Sentinel HD55 Commercial Dehumidifiers for Basements with Drain Hose
Best price now
22% under what the other stores charge
Compared across 12 stores. Prices are checked against each store and labelled with when.

22% under what the other stores charge
Compared across 12 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The AlorAir Sentinel HD55 is a compact commercial-grade dehumidifier for basements, crawl spaces and other damp rooms. It removes up to 113 pints a day at saturation (53 pints a day under the AHAM test standard) and covers up to 1,200 square feet. Its auto-defrost cycle keeps it running down to about 36°F, which is lower than most residential units manage. It is a workhorse for whole-basement drying rather than a quiet living-space appliance, and it needs a floor drain or a condensate pump because it drains through a hose.
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Lowest price we've seen: $505.95 on Nov 15 at AlorairCrawlspace. Tracked across 12 stores since Nov 15.
Owners generally treat the HD55 as a dependable basement workhorse, praising how much water it pulls and its cold-weather defrost. Complaints center on noise and on the need for a drain or pump.
The AlorAir Sentinel HD55 is a compact commercial-grade dehumidifier that reduces excess moisture in basements and other spaces. It removes up to 113 pints of water per day at saturation (53 pints per day at AHAM) and works in areas up to 1,200 square feet. It drains by gravity through a drain hose.
An auto-defrost system uses built-in sensors to monitor the ambient temperature. When the temperature is low, the unit starts a defrost cycle to prevent frost buildup. The compressor stops during the cycle while the fan keeps running to thaw the frost. Normal operation resumes when the cycle is done. The unit can work at temperatures as low as 36°F.
An optional remote control lets you adjust the temperature and fan speed from across the room.












