AlorAir Sentinel HD55 commercial dehumidifier can remove 120 PPD at saturation, 55 pints per day at AHAM, up to 1,300 sq. ft, lowering the humidity to comfortable levels in a short period. On the other hand, this ETL-listed dehumidifier is made of a metal outer casing that withstands more rugged conditions, ensuring long-term use and easy maintenance. Fit any crawl spaces, basements, warehouses, offices, factories, shops, storage areas.