. Desiccant dehumidifiers are different because they can work in all temperatures with a consistent performance right down to 32°F! Unlike compressor dehumidifiers there is no compressor which means no refrigerant making them greener lighter and quieter than a compressor dehumidifier. Key Product Info . Desiccant dehumidifier so no compressor or cooling coilsWorks down to 32°FPerfect for garages and unheated storage spacesHelps to protect your RV from dampLook after your classic car bike and toolsQuieter and lighter than a compressor dehumidifierUse in bedrooms basements and crawl spaces . . .