HPR Series Dehumidifier Desert Aire's Compact, Reliable Performers for Confined Areas These quiet, dependable and compact units deliver unsurpassed moisture removal for their size. The introduction of an HPR dehumidifier will condition all of the air within the problem area. HPR Series dehumidifiers can remove moisture at a rate in excess of 7 to 10 lbs./hr. (150 to 240 pints/day).