Features 120 PPD Commercial DehumidifierAlorAir 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 cETL-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. Designed for the Modern Home for the satisfaction, we designed this professional dehumidifier with the modern consumer in mind. All special features make it the best for crawlspace, basement, and commercial applications, auto defrosting system, optional Remote control system, MERV-8 filter, Low-temperature operation, cETL listed. Super Convenient UsageThis high-quality dehumidifier is simply adjusted to the ideal humidity setting to minimize moisture and reduce odor. The MERV-8 Filter can protect internal components from dust when dehumidifying. the most convenient point is that you are not requested to pour away the water every hour like a normal domestic dehumidifier, there is no tank inside, it drains automatically. Automatic Defrost A quick and efficient defrosting process, truly makes the dehumidifier able to work at a low temperature (36 degrees Fahrenheit), if frost is detected on the coils, an automatic defrost cycle runs to avoid frost build-up and issues associated with that build up. Makes the unit work continuously and efficiently without periodic stopping during the defrosting process, not only saving the energy but also making the unit last longer. Specifications Capacity 120 PPD at Saturation, 55PPD@AHAM Size For 1300 sq. ft. Supper COP 2.4 L/Kwh Air flow 130 CFM, 230CMH Draining