Desiccant (adsorption) dehumidifier systems offer the best solution. They can be comparatively small and portable. They offer a wider range of operational temperatures typically -30 to +40 °C together with inlet ambient humidity from 0-100%RH. Operationally they can provide humidity levels below 10%RH.
Dry air discharge temperatures can be in the order of 35 to 45°C, which assists in moisture removal. The great flexibility of desiccant dehumidifiers make them ideal for unheated environments.