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-1 filter, Low-temperature operation, cETL Listed. ??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. It makes the unit work continuously and efficiently without periodic stopping during the defrosting process, saving energy and making the unit last longer.